Skyjack SJKB-33N User manual

OPERATING
MANUAL
709396-AC
BOOM
SJKB-33N Serial Number 90877 and Above.
SJKB-33i, 33C Serial Number 91117 and Above.
SJKB-40i, 40C Serial Number 92525 and Above.
TM
BATTERY POWERED
SJKB
Printed in Canada
For Service in North America and Asia please call ............ 800 275-9522
Skyjack Inc. Service Center 3451 Swenson Ave,. St. Charles, IL. 60174 FAX [phone]
For Parts in North America and Asia please call...................... 800 965-4626
Skyjack Inc. Parts Center 990 Vernon Rd., Wathena, KS, 66090 . FAX [phone]
For Parts & Service in Canada please call........................................ 800 265-2738
Skyjack Inc. 55 Campbell Rd., Guelph, Ontario, Canada N1H 1B9 ........... FAX [phone]
For Parts & Service in Europe please call ............................................. 31 297 255 526
Skyjack Europe Communicatieweg 29, 3641 SG Mijdrecht Netherlands......... FAX [phone]
DEC., 1999
TM
Elevating the World
www.skyjackinc.com
TM

CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust and some of its constituents are known to the state of California
to cause cancer, birth defects, and other reproductive harm.
“Operating Maintenance & Parts Manual is available through Skyjack Parts Department” SECTION 2, Page 19 SJKB Battery Powered
Table 2-8. General Specifications - SJKB-33i, 33C and SJKB-40i, 40C
ELECTRICAL SYSTEM 48 Volts DC
BATTERIES (8) 6 Volt, 305AH
TIRES Refer to Table 2-3
INSIDE TURNING RADIUS 7’ (2.13m)
OUTSIDE TURNING RADIUS 14’-6" (4.42m)
UNDERCLEARANCE 7.5" (.19m)
FLOOR LOADING (SJKB-33i, 33C) 26.87psi(1.88 kg/cm2)
FLOOR LOADING (SJKB-40i, 40C) 32.86psi(2.31 kg/cm2)
PIVOTAL HEIGHT 15’-0" (4.6m)
TAILSWING AT PIVOTAL HEIGHT ZERO
TURRET ROTATION (non-continuous) 365 degrees
LIFETIME (minimum)(entry height to maximum platform height)(SJKB-33i, 33C) 95 seconds
LOWERING TIME (minimum)(maximum platform height to entry height)(SJKB-33i, 33C) 80 seconds
LIFETIME (minimum)(entry height to maximum platform height)(SJKB-40i, 40C) 124 seconds
LOWERING TIME (minimum)(maximum platform height to entry height)(SJKB-40i, 40C) 92 seconds
SYSTEM RELIEF PRESSURE (R1) 2600 psi
PUMP (boom function) .194 ci./rev.
TRAVEL SPEED (maximum at stowed height) 3.0 mph (1.3kph)
TRAVEL SPEED (maximum at elevated height) 0.8mph (1.3kph)
RETURN FILTER 20 micron
HYD-RESERVOIR CAPACITY (33i, 33C, 40i, 40C) 8.8 gal.(33.3 liters)
HYD-SYSTEM CAPACITY (33i, 33C, 40i, 40C) 15.8 gal.(59.8 liters)
AMBIENT NOISE LEVEL 56 db26’-3" (8m)
Mtwb205

SECTION 1 INTRODUCTION
PURPOSE OF EQUIPMENT ................................................................................................................................ 1
USE OF EQUIPMENT........................................................................................................................................... 1
WARNINGS........................................................................................................................................................... 1
DESCRIPTION...................................................................................................................................................... 1
SPECIFICATIONS AND FEATURES..................................................................................................................... 3
WORK PLATFORM MAJOR COMPONENT IDENTIFICATION (SJKB-33N) ........................................................ 4
WORK PLATFORM MAJOR COMPONENT IDENTIFICATION (SJKB-33i, 33C, 40i, 40C) .................................. 5
SECTION 2 OPERATION
OPERATOR QUALIFICATIONS ............................................................................................................................ 1
OPERATOR RESPONSIBILITY FOR MAINTENANCE......................................................................................... 1
MAINTENANCE AND INSPECTION SCHEDULE................................................................................................. 1
OWNER’S ANNUAL INSPECTION RECORD....................................................................................................... 1
GENERAL MAINTENANCE HINTS....................................................................................................................... 1
OPERATING CONTROL IDENTIFICATION.......................................................................................................... 1
Base Controls - Electrical ...................................................................................................................................... 2
Base Controls - Mechanical................................................................................................................................... 3
Base Controls - Hydraulic...................................................................................................................................... 4
Platform Controls - Electrical ................................................................................................................................. 6
OPERATING PROCEDURES ............................................................................................................................... 7
Prestart Checks..................................................................................................................................................... 8
Start and Operation ............................................................................................................................................... 8
Shutdown Procedure............................................................................................................................................. 9
Loading and Tie Down Procedure.......................................................................................................................... 9
BATTERY SERVICE AND CHARGING PROCEDURES....................................................................................... 10
Battery Service ...................................................................................................................................................... 10
Battery Charger Procedures.................................................................................................................................. 10
BATTERY CHARGER OPERATION ..................................................................................................................... 11
BRAKE OPERATION TEST PROCEDURE .......................................................................................................... 13
LIST OF TABLES
TABLE 2-1. MAINTENANCE SCHEDULE............................................................................................................ 12
TABLE 2-2. OWNERSANNUAL INSPECTION RECORD.................................................................................... 13
TABLE 2-3. TIRE SPECIFICATIONS (SJKB-33N) ............................................................................................... 13
TABLE 2-4. MAXIMUM PLATFORM CAPACITIES............................................................................................... 13
TABLE 2-5. GENERAL SPECIFICATIONS (SJKB-33N)....................................................................................... 14
TABLE 2-6.TIRE SPECIFICATIONS (SJKB-33i, 33C, 40i, 40C).......................................................................... 15
TABLE 2-7. STANDARD OPERATING TIMES (SJKB-33N, 33i, 33C, 40i, 40C)................................................... 15
TABLE 2-8. GENERALSPECIFICATIONS (SJKB-33i, 33C, 40i, 40C)................................................................. 16
Page i
TABLE OF CONTENTS
SECTION 2, Page 18 SJKB Battery Powered
Table 2-6. Tire Specifications - SJKB-33i, 33C and SJKB-40i, 40C
Mtwb203
FUNCTION TEST SECONDS
Riser Up 32-36
Riser Down 24-26
Boom Up 16-18
Boom Down 24-26
Boom Extract (SJKB 33N, 33i, 33C) 19-23
Boom Retract (SJKB 33N, 33i, 33C) 14-16
Boom Extract (SJKB 40i, 40C) 30-34
Boom Retract (SJKB 40i, 40C) 20-22
Jib Up 12-14
Jib Down 10-12
Platform Rotate Left 7-9
Platform Rotate Right 7-9
Turret Rotate Clockwise 57-63
Turret Rotate Counter Clockwise 57-63
Table 2-7. Standard Operating Times - SJKB-33N and SJKB-33i, 33C and SJKB-40i, 40C
Mtwb207
Model Tire Fill Specification
Size Rating Type Pressure
SJKB-33C, 40C 10 x 16.5 10 Ply Air 55 PSI
SJKB-33i,40i 11 L 16SL 12 Ply Air 55 PSI
SJKB-33C, 40C
(Lugged Flotation) 31 x 15.5 x 15 8 Ply Air 55 PSI
SJKB-33i,40i
(Ribbed Flotation) 31 x 13.5 x 15 8 Ply Air 55 PSI
SJKB-33C, 40C
(Lugged Foam
Filled) 10 x 16.5 10 Ply Solid Urethane *
SJKB-33i,40i
(Ribbed Foam
Filled) 11 L 16SL 12 Ply Solid Urethane *
HIGH FLOTATION
(Ribbed) 31 x 13.5 x 15 8 PLY Solid Urethane *
* 28 Durometer Fill installed at 55 psi.

WARNING
ANSI/SIA (United States)
You are required by ANSI/SIA A92.5 -1992 to read and understand YOUR RESPONSIBILITIES in the Manual Of
Responsibilities before you use or operate this work platform.
CSA (Canada) and CE (Europe)
Youare required toconformto national health andsafetyregulationsapplicable to the operationofthis work platform.
FAILURE TO COMPLY with your REQUIRED RESPONSIBILITIES in the use and operation of the work
platform could result in death or serious injury.
OPERATOR SAFETY REMINDERS
The National Safety Council reminds us that most accidents are caused by the failure of some individuals to follow
simple and fundamental safety rules and precautions. Common sense dictates the use of protective clothing when
working on or near machinery. Use appropriate safety devices to protect your eyes, ears, hands, feet and body.
You, as a careful operator, are the best insurance against an accident. Therefore, proper usage ofthisworkplatform
is mandatory. The following pages of this manual should be read and understood completely before operating the
work platform. Any modifications from the original design are strictly forbidden without written permission from
SKYJACK, Inc.
FAILURE TO AVOID THIS HAZARD WILL RESULT IN DEATH OR SERIOUS INJURY!
THIS MACHINE IS NOT INSULATED.
MAINTAIN SAFE CLEARANCES FROM
ELECTRICAL POWER LINES AND
APPARATUS. YOUMUST ALLOWFOR
PLATFORM SWAY, ROCK OR SAG.
THIS WORK PLATFORM DOES NOT
PROVIDE PROTECTION FROM
CONTACT WITH OR PROXIMITYTOAN
ELECTRICALLY CHARGED CON-
DUCTOR.
ELECTROCUTION HAZARD
DANGER VOLTAGE RANGE MINIMUM SAFE APPROACH DISTANCE
(PHASE TO PHASE) (FEET) (METERS)
AVOID CONTACT
10
(0 TO 300V)
(Over 300V to 50KV)
(Over 50KV to 200KV)
(Over 200KV to 350KV)
(Over 350KV to 500KV)
(Over 500KV to 750KV)
(Over 750KV to 1000KV)
15
20
25
35
45
3.05
4.60
6.10
7.62
10.67
13.72
Page ii SECTION 2, Page 17
SJKB Battery Powered
Table 2-5. General Specifications - SJKB-33N
MT33N206
ELECTRICAL SYSTEM 48 Volts DC
BATTERIES (8) 6 Volt, 350AH
TIRES Refer to Table 2-6.
INSIDE TURNING RADIUS 66" (1.68m)
OUTSIDE TURNING RADIUS 122" (3.09m)
UNDERCLEARANCE 4" (0.10m)
FLOOR LOAD RATING 64.7psi (4.55kg/cm²)
PIVOTAL HEIGHT 15' - 0" (4.6m)
TAILSWING AT PIVOTAL HEIGHT ZERO
TURRET ROTATION (non-continuous) 355 degrees
LIFT TIME (minimum) (entry height to maximum platform height) 95 Seconds
LOWERING TIME (mimimum) (maximum platform height to entry height) 80 Seconds
SYSTEM RELIEF PRESSURE (R1) 2600 psi
PUMP (boom function)
PUMP (brake) .194 ci./rev .065 ci./rev
TRAVEL SPEED (maximum at stowed height) 3.4mph (5.5kph)
TRAVEL SPEED (maximum at elevated height) 0.8mph (1.3kph)
RETURN FILTER 10 micron
HYDRAULIC SYSTEM CAPACITY 9.2 gallons (34.8 liters)
HYDRAULIC TANK CAPACITY 5.5 gallons (20.8 liters)
AMBIENT NOISE LEVEL 56db

Page iii
SERVICE POLICY AND WARRANTY
SKYJACK, Inc. warrants each new work platform to be free of defective parts and workmanship during the first 12
months. Refer to Warranty Statement on Page iv for details.
NOTE
SKYJACK, Inc. is continuously improving and expanding product features on it’s equipment; therefore,
specifications and dimensions are subject to change without notice.
This SafetyAlert Symbol Means Attention!
Become Alert! Your Safety Is Involved.
The SafetyAlert Symbol identifies important safety messages on machines, safety signs, in manuals, or elsewhere.
When you see this symbol, be alert to the possibility of personal injury or death. Follow the instructions in the safety
message.
SCOPE OF THIS MANUAL
This manual applies to theANSI/SIA, CSAand CE versions of the SJKB-battery powered work platform. Equipment
identified with “ANSI/CSA” meets theANSI/SIA-A92.5 -1992 standards. Equipment identified with “CSA” meets the
CAN3-B354.4 M82 standards. Equipment identified with “CE” meets the requirements for the European countries,
i.e. Machinery Directive 89/392/EEC and EMC Directive 89/336/EEC and the corresponding EN standards.
DO NOT OPERATE THIS EQUIPMENT WITHOUT PROPER
AUTHORIZATION AND TRAINING. DEATH OR SERIOUS
INJURY COULD RESULT FROM IMPROPER USE OF THIS
EQUIPMENT!
SECTION 2, Page 16 SJKB Battery Powered
Figure 2-15. Reach Diagram SJKB-40i, 40C
Figure 2-16. Dimensional Diagram SJKB-40i, 40C

Page iv
SKYJACK, Inc. warrants each new work platform to be
free of defective parts and workmanship. During the
firstfullyear,laborandreplacementpartswillbeprovided
by the local authorized Skyjack dealer without charge.
For the following 48 months, structural components
found to be defective will be replaced or repaired at no
charge.
A warranty registration card is supplied with each work
platform. The warranty is only effective when the
warranty card has been completed and returned to
Skyjack within 15 days from the time of billing. When
work platforms are put into stock, the warranty period
does not start until the work platform has been shipped
to the dealers customer. If a unit is put into service and
no warranty card has been mailed to Skyjack, Inc., the
warranty period will commence 15 days from the date
the dealer was invoiced for the work platform.
Allwarrantyclaimsaresubject to approval by Skyjack’s
ServiceDepartment. Skyjack,Inc.reserves the right to
limitor adjust claimswithregard to defective parts,labor
ortravel time based onusualandcustomary guidelines.
Parts purchased from sources other than Skyjack will
notbe covered under this warranty. Misuse or improper
operation, lack of normal maintenance and inspections
as outlined in this manual, alterations to original design
and/or components or accidents will void all warranty.
Batteries are not covered by this warranty.
The above mentioned warranty statement is exclusive
and no other warranty whether written, oral or implied
shall apply. Skyjack excludes any implied warranty of
merchantability and fitness and accepted no liability for
consequential damages or for other negligence.
WARRANTY PROCEDURES
The selling distributor or authorized dealer shall be
responsibleforthe completehandling ofcustomerclaims
under this warranty. Here’s what to do:
1. When a customer files a claim under this warranty,
contact Skyjack’s Service Department to verify
warranty coverage. NOTE: The complete serial
number of the work platform is required to verify the
claim.
2. WhenSkyjack’sService Departmentverifieswarranty
coverage, they will also issue an RA (Return
Authorization)numberfor the return of any defective
component(s). All items over $25.00 in value must
be returned to Skyjack, Inc.
WARRANTY STATEMENT
3. Fill out a Warranty Claim Form from dealer’s supply
of claim forms. Then notify Skyjack’s Service
Departmentof thewarrantyclaim numberonthe form
used.
4. Thedistributor/dealershouldthenfileawarrantyclaim
withSkyjack,Inc. describing the nature of the defect,
probable cause, work performed, travel hours, and
labor hours listed separately. Warranty labor will be
paidatarateof$42.00perhour. Thetravel allowance
willbepaid at the same hourly rate within the dealers
specified territory, limited to a maximum of four (4)
hours. If a part has serviceable components,
PLEASE replace the bad component. For instance,
ifyouhave abadswitchona controller, pleasereplace
the switch. Hydraulic cylinders should be repacked,
unless they are damaged beyond repair. Engine
failures should be directed to your local engine
distributor and covered by the manufacturers
warranty. Skyjack will accommodate you and your
labor. Labor rates and travel allowances are subject
to change without notice.
5. Warranty claims must be received by Skyjack within
15working daysfromthe date oftherepair. Warranty
claims received with insufficient information will be
returned for correction or completion.
6. Materials returned for warranty inspection musthave
the following procedures:
A. Carefullypackagedtopreventadditional damage
during shipping.
B. Drained of all contents and all open ports capped
or plugged.
C. Shippedina container tagged or marked with the
RAnumber.
D. Shipped PREPAID. Any item(s) returned for
warranty by any other means may be refused and
returned unless prior approval from Skyjack is
obtained.
E. Items shipped to the dealer will be sent freight
prepaid and added to the invoice.
Failuretocomplywiththeaboveproceduresmaydelay
approvaland processingof thewarrantyclaim andcould
resultinthe denialofawarrantyclaim. Skyjack’sdealer’s
accounts must be kept current in order to approve and
issue warranty credits. Skyjack reserves the right to
withhold issuance of warranty credits to a dealer if their
accountisnotingoodstanding. Thisissubjecttochange
without prior notice. SECTION 2, Page 15
SJKB Battery Powered
Figure 2-13. Reach Diagram SJKB-33i, 33C
Figure 2-14. Dimensional Diagram SJKB-33i, 33C

SECTION 1, Page 1SJKB Battery Powered
SECTION 1
INTRODUCTION
PURPOSE OF EQUIPMENT
TheSKYJACK SJKBBoom Work Platformaredesigned
to transport and raise personnel and tools to overhead
work areas.
USE OF EQUIPMENT
The work platform (Figure 1-2A/B.)are highly
maneuverablework station. ModelsSJKB-33N,33i and
40i are designed for slab-type industrial applications.
ModelsSJKB-33C and 40C are designed for bothslab-
typeand roughterrainconstruction applications. Lifting
and driving these models MUST be on a flat, level,
compacted surface.
WARNINGS
The operator MUST read and completely understand
the front panel labels (Figures 1-1) and ALL other
warnings in this manual and on the work platform.
Comparethelabels on the work platform with the labels
found throughout Sections 1 and 2 of this manual. If
any labels are damaged or missing, replace them
immediately.
DESCRIPTION
The work platform consists of four major assemblies,
the platform, boom assembly, turret and drive chassis.
Anoperator’scontrolconsoleislocated on the platform.
A foot switch on the platform enables and disables the
platformcontrols. Auxiliary and emergency controls are
located in the hydraulic/electric cabinet on the rotating
turret.
PLATFORM - The platform is constructed of a skid-
resistant see-thru deck surface and a 42" high tubular
steelrailing system withmidrailsand 6" toeboards. The
platform can be entered through a sliding midrail bar at
the center of the railing system or optional hinged gate.
The platform can be rotated 90 degrees from center in
either direction. A110 VAC GFI outletis also locatedon
the platform.
BOOMASSEMBLY -The boomismounted ontheturret
and consists of a 4 foot hydraulic boom jib, telescoping
boom assembly and riser arm. This mechanism uses
double-actinghydrauliccylinderswith holding valves to
control vertical movement. Manual lowering valves at
the base of the riser, boom and jib cylinders allow the
mechanism to lower in the event of an emergency or
electrical system failure.
TURRET - SJKB-33N, the turret rotates 355 degrees
noncontinuous. Withinthe turret are two cabinets. One
cabinet contains the hydraulic tank and boom function
pump/motor assembly. The other cabinet contains
hydraulicandelectriccomponents and the base control
panel. SJKB-33i, 33C, 40i, 40C,The turretrotates365
degrees noncontinuous. Within the turret are two
cabinets. One cabinet contains the main hydraulic
manifold.The other cabinet contains the boom function
pump/motor assembly, the brake manifold with
emergency release valve, and the base control panel.
The 48 volt, 25 amp battery charger is located at the
rear of the turret. A hinged panel above the battery
charger houses the electronic control units. The
hydraulic oil tank is located at the front of the turret.
DRIVE CHASSIS -Thisweldment supports two battery
compartments each holding four six volt, deep-cycle
batteries. Anelectric motor coupled withadrive locking
differentialisusedfordrivingtheworkplatform. Dynamic
brakingas well as spring-applied hydraulically-released
parking brakes are located on the drive axle. The front
axle has two non-driven wheels steerable by double-
acting steer cylinders. SJKB-33N, the 48 volt, 25 amp
battery charger is located at the front of the chassis.
PLATFORM CONTROL CONSOLE - Located on the
platform,this removablecontrol stationcontainscontrols
for work platform motion and emergency stopping.
OPTIONAL ACCESSORIES - The SKYJACK SJKB
Boom Work Platform is designed to accept a variety of
optional accessories. These are listed in Table 1-1.
Specifications and Features found later in this section.
Operatinginstructions for these options(ifrequired)can
be found in Section 2 of this manual.
1
SECTION 2, Page 14 SJKB Battery Powered
Figure 2-11. Reach Diagram SJB-33N
Figure 2-12. Dimensional Diagram SJKB-33N

SECTION 1, Page 2 SJKB Battery Powered
Figure 1-1. Front Panel Labels
General Work Conditions
Read and pay attention to all labels on the unit.
DO NOTexertexcessive side forcesonplatform while
elevated.
DO NOToverload, the lift relief valve does not protect
against overloading when the platform is elevated.
DO NOTalter or disable limit switches or other safety
devices.
DO NOT raise your platform in windy or gusty
conditions.
DO NOTexceedthe rated capacity of yourunit. Make
sure the load is evenly distributed on the platform.
Jobsite Hazards
DO NOT operate the unit on surfaces not capable of
supportingthe weight of theworkplatform,including the
rated load, e.g. covers, drains and trenches.
BE AWARE of overhead obstacles, especially
electrical lines. Also be aware of poorly lit areas that
might hide overhead obstacles.
DO NOTelevatetheworkplatformiftheunit is not on
firm level surfaces. Avoid pot holes, loading docks,
debris,drop offs and surfaces thatmyaffectthestability
of your work platform.
DO NOTclimb or descend a grade steeper than 30%
while in travel mode. Boom elevated driving must be
done only on firm surfaces. (Ref. Table 1-1)
ENSURE that there is no person(s) in the path of
travel.
Work Platform Conditions
An operator should not use any work platform that:
Has ladders, scaffolding or other devices mounted on it
to increase its size or work height.
Does not have a clean, uncluttered work area.
Does not appear to be working properly.
Hasbeendamaged or appears to have worn or missing
parts.
Has alterations or modifications not approved by the
manufacturer.
Hassafety deviceswhichhave beenalteredor disabled.
SECTION 2, Page 13
SJKB Battery Powered
Proper operation of the parking brakes should be checked daily or at the beginning of each shift. Locate the machine
in an appropriate area for testing the brakes. IMPORTANT NOTE: The area for testing the machine MUST be
completelylevelandfreeofobstructions.DO NOT drive on an incline unless the parkingbrakesareworkingproperly.
With the machine fully stowed and the throttle switch in the high position (if engine powered). Drive the machine
forward at full speed and remove foot from foot switch. Repeat this step driving in reverse.
WARNING
Parking brakes will instantly engage causing the machine to stop immediately.
The machine should come to an instant and abrupt stop. If the machine does not stop instantly or if the machine pulls
to one side while stopping, the brake adjustment MUSTbe checked before putting the machine into service.
Table 2-3. Tire Specifications - SJKB-33N
Table 2-4. Maximum Platform Capacities
Model Platform Capacity (unrestricted)
ALL MODELS 500# (227kg) 2 occupants
NOTE: Refer to capacity label on work platform for additional information.
RECOMMENDED HYDRAULIC OILS
DO NOT use synthetic or fire resistant oil in this work platform. UseATF Dexron III (ESSO) or equivalent hydraulic oil.
For conditions causing oil temperatures below -31°F (-35° C) and above 122°F (50° C) consult Skyjack, Inc.
Table 2-2. Owner’sAnnual Inspection Record
MT33N203
MT33N204
MT33N205
MODEL NUMBER__________________________ SERIAL NUMBER______________
RECORDING
DATE
RECORDING
YEAR # 12345678
OWNERS
NAME
INSPECTED
BY
BRAKE OPERATION TEST PROCEDURE
Model
Tire
Fill SpecificationSize Rating
SJKB-33N 27.5 x 7.5 x 15 14 Ply Solid Urethane†
NON-MARKING(Option) 27.5 x 7.5 x 15 Solid
† - Solid urethane used for filling MUST be 75 durometer.

SECTION 1, Page 3SJKB Battery Powered
TABLE 1-1. SPECIFICATIONS AND FEATURES
Specifications
WEIGHT (SJKB-33N)........................................................................................14,500# (6577kg)
WEIGHT (SJKB-33i, -33C)..................................................................................9,700# (3946kg)
WEIGHT (SJKB-40i, -40C)................................................................................12,800# (5806kg)
WORK HEIGHT (SJKB-33N) .................................................................................... 39' (11.89m)
WORK HEIGHT (nominal)(SJKB-33i, -33C) ............................................................. 39' (11.89m)
WORK HEIGHT (nominal)(SJKB-40i, -40C) ............................................................. 46' (14.02m)
RAISED PLATFORM HEIGHT(nominal)(SJKB-33N) ...............................................33' (10.06m)
RAISED PLATFORM HEIGHT (nominal)(SJKB-33i, -33C) ......................................33' (10.06m)
RAISED PLATFORM HEIGHT (nominal)(SJKB-40i, -40C)....................................... 40' (12.19m)
STOWED HEIGHT ......................................................................................................6' 7" (2.0m)
OVERALL WIDTH (SJKB-33N) ................................................................................. 48" (1.22m)
OVERALL WIDTH (SJKB-33i, -40i) ..........................................................................5' 9" (1.75m)
OVERALL WIDTH (SJKB-33C,-40C)......................................................................5' 10" (1.78m)
STOWED LENGTH (SJKB-33N).............................................................................14' 4" (4.36m)
STOWED LENGTH (SJKB-33i, -33C).....................................................................15' 2" (4.62m)
STOWED LENGTH (SJKB-40i, -40C).....................................................................18' 3" (5.56m)
PLATFORM CAPACITY (Unrestricted)....................................................................500# (227kg)
PLATFORM SIZE (SJKB-33N,-33i,-40i).......................................30.00" x 48.00" (.76m x 1.22m)
PLATFORM SIZE (SJKB-33C, -40C)............................................30.00 x 66.00" (.76m x 1.68m)
ELECTRICAL SYSTEM ............................................................................................. 48 Volts DC
GRADABILITY .......................................................................................................................30%
TURRET ROTATION (SJKB-33N) ............................................................355° (Non-continuous)
TURRET ROTATION (SJKB-33i,-33C,-40i,-40C)......................................365° (Non-continuous)
TIRE SIZE (SJKB-33N) .............................................................27.5" x 7.5" x 15" Solid Urethane
TIRE SIZE (SJKB-33i, -40i) (Ribbed) ............................................................. 11 L 16SLAir Filled
TIRE SIZE (SJKB-33C, -40C) (Lugged) ................................................ 30" x 10" x 16.5 Air Filled
Features
STANDARD EQUIPMENT
4 Foot Hydraulically Controlled Boom Jib
Variable Speed Drive and Function Controls
In-Line ElevatingAssembly
ContinuousDriveandSteer DirectionalSensing
Electrical Dynamic Braking System
Two Spring-Applied Hydraulically-
Released Parking Brakes
ANSI and CSA Standards Compliance
OPTIONAL EQUIPMENT
Operator Horn
All Function MotionAlarm
DescentAlarm
TravelAlarm
FlashingAmber Light
Spring-Loaded Half Gate
Spring Loaded Full Gate
On-Board 110VAC Generator
Lifting Lugs
Non Marking Tires
Additional Battery Boxes
Overload Sensing (France)
30" x 66" Platform (SJKB-33i, 40i Only)
High speed drive (SJKB-33i, 40i Only)
High Flotation Tires (SJKB-33C, 40C Only)
SECTION 2, Page 12 SJKB Battery Powered
Table 2-1. Maintenance and Inspection Schedule
Daily Weekly Monthly 3 Months 6 Months *Yearly
MECHANICAL
Struct. damage/welds (1) á á
Parking brakes (2) á á
Tires and wheels (1)(2)(3) á á
Guides and slides (1)(2) á á
Railings and gates (2)(3) áá
Bolts and fasteners (3) á á
Rust(1) áá
Wheel bearings (2) and king pins (1)(6) áá
Turret gear (1)(2)(3)(6) áá
Turret gear box (1)(2)(3) áá
Pivot pins (1) á á
Steer cylinder ends (6) áá
Axle gear oil (12) á
ELECTRICAL
Battery fluid level (1) á á
Control switches (1)(2)(3) á á
Cords and wiring (1) á á
Battery trays (11) áá
Battery terminals (1)(3)(11) á á
Terminals and plugs (1)(3)(11) á á
Generator and recepticals (2) á á
Limit switches (2) á á
Tilt sensor (2) á á
Directional sensing (2) á á
HYDRAULIC
Hydraulic fluid level (1) á á
Hydraulic leaks/hoses (1)(3) á á
Lift/lowering time (8) áá
Hydraulic cylinders (1)(2)(3) áá
Emergency lowering (2) á á
Lift capacity (5) áá
Hydraulic oil filter (7) áá
MISCELLANEOUS
Labels (1)(9) Manuals (10) á á
NOTES:
(1) Visuallly inspect (2) Check operation
(3) Check tightness (4) Check oil level
(5) Check releifvalve setting.Refer to Serial Number Nameplate.
(6) Lubricate (7) Replace
(8) See Table 2-5. General Specifications.
(9) Replace if missing or illegible.
(10) Proper Operation Manual MUST be in manual
enclosure.(11) Clean
(12)Change oil. *Record inspection date.
MT33N202

SECTION 1, Page 4 SJKB Battery Powered
OPERATOR’S TELESCOPING
CONTROL BOOMASSEMBLY
CONSOLE
BOOM
JIB
RISER
ARM
TURRET
BATTERY
CHARGER
DRIVE
CHASSIS
BASE
CONTROL
PANEL
PLATFORM
MA33N106
WORK PLATFORM MAJOR COMPONENT IDENTIFICATION
Figure 1-2A. SKYJACK SJKB-33N Boom Work Platform
(Model SJKB-33N shown)
SECTION 2, Page 11
SJKB Battery Powered
BATTERY STATUS
1. GREEN LED............... CHARGE COMPLETE
2. YELLOW LED ......................... 80% CHARGE
3. RED LED................................. INCOMPLETE
CHARGER STATUS
4. YELLOW LED ........................ CHARGER ON
5. RED LED....................... ABNORMAL CYCLE
6. CHARGER STOP SWITCH
7. FUSE HOLDER
BATTERY CHARGER OPERATION
Figure 2-10.Automatic Battery Charger
7
6
5
4
3 2 1
OPERATION OF THE COMPLETELY AUTOMATIC
BATTERY CHARGER
This charger is equipped with an electronic circuit that
willcompletely recharge the batteries and automatically
turn off after the charge cycle is complete.
The function of the LED indicators is as follows:
When the AC power is connected to the charger, the
LED’s will flash several times then flash independently
to check the light circuits. After the flashing sequence
iscompletethe“INCOMPLETE”light will come on. Five
seconds later, the “CHARGER ON” light will come on
and at the same time, the ammeter will indicate how
much current is going to the batteries.
As the charge cycle continues, which can last between
1-1/2 hours and 16 hours for a complete cycle,
depending on the state of charge of the batteries, the
“80% CHARGE” light will come on and the
“INCOMPLETE” light will go off. When voltage of the
batteries reaches approximately 60 volts, the “80%
CHARGE” light will go off and the “CHARGE
COMPLETE” light will come on. This light will remain
on even after the charger is turned off by the electronic
control. After the charger turns off, the “CHARGE
COMPLETE” light will indicate to the operator that the
batteries are healthy and are fully charged.
If the “80% CHARGE” light continues to stay on after
the charge cycle is complete, this indicates to the
operatorthatthe batteries are not capable of attaining a
full charge.
If the “INCOMPLETE” light remains on after the charge
cycle is complete, this indicates to the operator that the
batteries are not capable of attaining even an 80%
charge.
If either the “80% CHARGE” or “INCOMPLETE” light
remain on after the charge cycle is complete, the
batteries should be inspected for problems.
Yourstandardgoodwateringproceduresshould beused
at all times.
MA33N211

SECTION 1, Page 5SJKB Battery Powered
OPERATOR’S
CONTROL CONSOLE
BOOM
JIB
PLATFORM
RISER
ARM
BASE
CONTROL
PANEL
TURRET
TELESCOPING
BOOM
ASSEMBLY
DRIVE
CHASSIS
BATTERY
CHARGER
Figure 1-2B. SKYJACK SJKB Boom Work Platform
(Model SJKB-33C Shown)
Mawb100
WORK PLATFORM MAJOR COMPONENT IDENTIFICATION
SECTION 2, Page 10 SJKB Battery Powered
BATTERY SERVICE AND CHARGING
PROCEDURES
Battery Service
WARNING
EXPLOSION HAZARD
Keep flames and sparks away. DO NOT smoke near
batteries.
CAUTION
Contact with electrolytic acid can cause skin irritation
and damage clothing. Wear a protective apron, gloves
and goggles when working with batteries.
FIRST AID
Immediatelyflush eyes withcold water ifelectrolytic
acid is splattered into them. Seek medical attention
if discomfort continues.
1. Disconnect the batteries by separating the 350
Amp battery connectors.
WARNING
EXPLOSION HAZARD
DO NOT service the batteries without first separating
the 350 Amp battery connectors. Vapors emitted by
batteries can be ignited by a spark or arc.
2. Checkbatteryfluidlevelineachbattery. If plates
are not covered, add distilled or demineralized
water.
3. Check each battery case for damage.
4. Clean battery terminals and cable ends
thoroughly with a terminal cleaning tool or wire
brush.
5. Make sure all battery connections are tight.
6. Replace any battery that is damaged or
incapable of holding a lasting charge.
7. Reconnect the 350Amp battery connectors.
Battery Charging Procedures
WARNING
EXPLOSION HAZARD
Chargers can ignite flammable materials and vapors.
DO NOT use near fuels, grain dust, solvents, or other
flammables.
WARNING
SHOCK HAZARD
To reduce the risk of electrical shock, connect charger
only to a properly grounded single phase outlet. DO
NOT use a extension cord longer than 25 feet.
1. Select “ ” (off) or “ ” (platform) position
with the Off/Platform/Base Key Select Switch.
NOTE
The battery charger WILL NOT operate if the Off/
Platform/Base Key Select Switch is in the “ ”
(base) position.
NOTE
When the battery charger is operating all machine
functions are disabled.
2. Connect charger AC plug to proper voltage
source. Referto charger nameplate for voltage
requirements.
3. Charge batteries. DO NOT leave charger
unattendedformorethantwoconsecutive days.
Severe overcharging and battery damage will
result if charger fails to turn off.
4. Disconnectchargerfromexternal powersource.

SECTION 1, Page 6 SJKB Battery Powered
NOTES
SECTION 2, Page 9
SJKB Battery Powered
26. TO SOUND THE HORN: Depress the red
push-button on the Drive/Steer Controller.
Shutdown Procedure
1. Fully lower the platform.
21. TO LEVEL THE PLATFORM (Platform is
tilted toward the jib): Press and hold the
Platform Leveling Toggle Switch to the “ ò“
(down) position.To stop release the switch.
22. TO ROTATE THE PLATFORM TO THE LEFT:
Pressandhold theTurretRotateToggleSwitch
to the “ ï“ (left) position. Release the switch
to stop.
23. TOROTATETHE PLATFORM TO THE RIGHT:
Pressandhold theTurretRotateToggleSwitch
tothe “ ð“ (right) position. Release the switch
to stop.
24. TO RETRACT THE BOOM ARM: Press and
hold the Boom Extend/Retract Toggle Switch
to the “ ñ“ (retract) position. Release the
switch to stop.
25. TO EXTEND THE BOOMARM: Press andhold
the Boom Extend/RetractToggle Switch to the
“ ò“ (extend) position. Release the switch to
stop.
2. Push in the Emergency Stop Buttons.
3. Rotate the Off/Platform/Base Key Switch to
the ” “(off) position. Remove the key.
Loading and Tie Down Procedure
1. With the telescopic boom fully retracted and
traileronfirmlevelground.Align the tires of the
boom with the back end of the trailer.
2. Slightly raise the jib for ground clearance while
loading.Slowlyand carefully drive the machine
on to the trailer.
NOTE
For loading and unloading using a winch line, see
the brake release procedures in this section.
REMEMBER
Operating any hydraulic function will reset the
parking brake.
3. With machine loaded on trailer, tie down as
recommended. (Refer to Figure 2-9.)
Figure 2-9. Recommended Tie Down Locations
MA33N210
4. Separate the 350 amp battery connectors.

SECTION 2, Page 1
SJKB Battery Powered
SECTION 2
OPERATOR CONTROLS/INSPECTIONS
OPERATOR’S RESPONSIBILITY FOR MAINTENANCE
Deathor injury can result if the work platform is notkeptingoodworkingorder.Inspectionandmaintenance should be
performed by competent personnel who are familiar with mechanical procedures.
The operator should be assured that the work platform has been properly maintained and inspected before using it.
Even if the operator is not directly responsible for the maintenance of this work platform, the operator should perform
ALL the daily inspections found in Table 2-1. Maintenance and Inspection Schedule.
NOTE
Replace all worn or damaged parts or labels discovered during this inspection.
MAINTENANCE AND INSPECTION SCHEDULE
Theactualoperatingenvironmentoftheworkplatformgovernstheuseofthemaintenanceschedule. Theinspection
points covered in Table 2-1. Maintenance and Inspection Schedule indicates the areas of the work platform to be
maintained or inspected and at what intervals the maintenance and inspections are to be performed.
OWNER’S ANNUAL INSPECTION RECORD
It is the responsibility of the owner to arrange daily, weekly, monthly and annual inspections of the work platform.
Table2-2. Owner’sAnnualInspectionRecordistobeusedfor recording the date of inspection, owners’ name and the
person responsible for the inspection of this work platform.
GENERAL MAINTENANCE HINTS
• • Before attempting any repair work, disconnect the batteries by separating the 350A connectors.
• • Preventive maintenance is the easiest and least expensive type of maintenance.
2
OPERATOR QUALIFICATIONS
Only trained and authorized persons should use this work platform. Safe use of this work platform requires the
operatortounderstand thelimitations andwarnings, operatingproceduresandoperator’sresponsibility formaintenance.
Accordingly, the operator MUSTunderstand and be familiar with this operating manual, its warnings and instructions
andALLwarnings and instructions on the work platform. Operator also MUSTbe familiar with employer’s work rules
andrelatedgovernmentregulationsand be able to demonstrate his/her ability to understand and operate THIS make
and model work platform in the presence of a qualified person.
OPERATING CONTROL IDENTIFICATION
The following descriptions are for identification, explanation and locating purposes only. Aqualified operator MUST
read and completely understand these descriptions before operating this work platform. Procedures for operating
this work platform are detailed in the ‘’OPERATING PROCEDURES’‘ section beginning on SECTION 2, Page 7 in
this manual. Both standard and optional controls are identified in this section. Therefore, some controls may be
included that are not furnished on your platform.
SECTION 2, Page 8 SJKB Battery Powered
11. TO ADJUST BOOM FUNCTION SPEED:Turn
the Boom Speed Control Knob counter-
clockwise to decrease function speed or
clockwisetoincreasefunctionspeed.TheBoom
SpeedControlwill affect all lifting, lowering and
rotate functions but will not affect drive or steer
speed.
12. TO MOVE THE JIB UPWARD: Press and hold
the Jib Up/Down Toggle Switch to the “ ñ“
(up) position. Release the switch to stop.
DO NOT operate any control on the operator’s control
console without your safety belt fastened and properly
securing the safety belt lanyard to the platform lanyard
rings. Failure to avoid this hazard could result in
death or serious injury!
5. Attachthesafetybeltlanyards ofeach occupant
to the platform lanyard rings.
6. Pull out the Emergency Stop Button .
7. Depress and hold the Foot Switch.
REMEMBER: The controls on the Operator’s
ControlConsole WILLNOT operate unless the Foot
Switch is depressed and held.
NOTE: When the operator is positioned over an
axle, the direction the operator is facing will be
FORWARD!
8. TODRIVE FORWARD: Slowlymovethe Drive/
Steer Controller handle to the “ñ“ (forward)
position. Release controller handle to stop.
9. TO DRIVE IN REVERSE: Slowly move the
Drive/Steer Controller handle to the “ ò“
(reverse) position. Release controller handle
to stop.
10. TO STEER: Depress the rocker on the Drive/
SteerController handleinthe directionyouwish
to steer.
4. Enter the platform by sliding the entry bar at
the center of the platform upward. Make sure
the entry midrail returns to midrail position.
Close the gate (if so equipped).
Pre-start Checks
1. Check for obstacles around the work platform
and in the path of travel such as holes, drop
off’s, debris, ditches and soft fill.
2. Check overhead clearances.
3. Make sure that the batteries are fully charged.
Disconnectbattery chargerfromexternal power
source.
4. Make sure emergency lowering valves at the
base of the riser, boom and jib cylinders are
fully closed.
Start and Operation
1. Makesurethatthe 350Amp BatteryConnectors
are not separated.
2. PullouttheEmergency StopButton onthe Base
Control Panel.
3. Select“ ” (platform)withOff/Platform/Base
Select Key Switch.
WARNING
13. TO MOVE THE JIB DOWNWARD: Press and
hold the Jib Up/Down Toggle Switch to the “ ò
“ (down) position. Release the switch to stop.
14. TO MOVE THE RISER UPWARD: Press and
hold the Riser Up/Down Toggle Switch to the
“ ñ“ (up) position. Release the switch to
stop.
15. TO MOVE THE RISER DOWNWARD: Press
and hold the Riser Up/Down Toggle Switch to
the “ ò“ (down) position. Release the switch
to stop.
16. TO MOVE THE BOOM UPWARD: Press and
hold the Boom Up/Down Toggle Switch to the
“ ñ“ (up) position. Release the switch to
stop.
17. TO MOVE THE BOOM DOWNWARD: Press
and hold the Boom Up/Down Toggle Switch to
the “ ò“ (down) position. Release the switch
to stop.
18. TO ROTATE THE TURRET LEFT: Press and
holdtheTurretRotateToggleSwitch to the “ï“
(left) position. Release the switch to stop.
19. TO ROTATE THE TURRET RIGHT: Press and
hold the Turret Rotate Toggle Switch to the“ ð
“ (right) position. Release the switch to stop.
20. TO LEVEL THE PLATFORM (Platform is
tilted away from the jib): Press and hold the
Platform Leveling Toggle Switch to the
“ ñ“ (up) position.To stop release the switch.

SECTION 2, Page 2 SJKB Battery Powered
11. BEEPER ALARM - This optional audible pulse
device can be setup as a motion alarm, or as an all
function alarm.
10. CIRCUIT BREAKERS - In the event of a power
overloador positive circuitgrounding,the circuit breaker
will pop out. Make the necessary corrections, then
depress the push-button to reset.
9. EMERGENCY STOP BUTTON - When struck, this
redpush-button switch disconnects powertothe control
circuit. Inthe event of anemergencyorat work platform
shut down, push button in. To restore power, simply
pull button out.
8. JIB UP/DOWN TOGGLE SWITCH - This switch
controls the up/down movement of the jib. To move the
jib upward, push and hold this toggle switch to the
“ñ“ (up)position. Releaseswitchtostop. To movethe
jib downward, push and hold this toggle switch to the
“ ò“ (down) position. Release switch to stop.
1. OFF/PLATFORM/BASE SELECT KEY SWITCH
2. RISER UP/DOWN TOGGLE SWITCH
3. BOOM UP/DOWN TOGGLE SWITCH
4. TURRET ROTATION TOGGLE SWITCH
5. PLATFORM LEVELING TOGGLE SWITCH
6. BOOM RETRACT/EXTEND TOGGLE SWITCH
7. PLATFORM ROTATION TOGGLE SWITCH
8. JIB UP/DOWN TOGGLE SWITCH
9. EMERGENCY STOP BUTTON
10. CIRCUIT BREAKERS
11. BEEPER ALARM (option)
BASE CONTROL PANEL - This control station is
located on the rotating turret in the hydraulic/electric
cabinet cover. It contains the following controls:
1. OFF/PLATFORM/BASE SELECT KEY SWITCH -
Turning the key to the “ ” (off) position disconnects
powerfromthecontrol circuit. Whenthe “ ”(platform)
position is selected, power is directed to the control
station on the platform. When the switch is held in the
“ ” (base) position power is directed to the control
station on the base.
3. BOOM UP/DOWN TOGGLE SWITCH - This switch
controls the up/down movement of the boom section.
To raise the boom section, push and hold this toggle
switchtothe“ñ“(up)position. Releaseswitchtostop.
To lower the boom section, push and hold this toggle
switchtothe “ò“(down) position.Releaseswitchtostop.
2. RISER UP/DOWN TOGGLE SWITCH - This switch
controlstheup/downmovementofthe riser section. To
raise the riser section, push and hold this toggle switch
to the “ ñ“ (up) position. Release switch to stop. To
lowerthe riser section, push and hold this toggle switch
to the “ ò“ (down) position. Release switch to stop.
4. TURRET ROTATION TOGGLE SWITCH - This
switch controls clockwise and counterclockwise turret
rotation. To rotate the turret clockwise, push and hold
this toggle switch to the “ ï“ (cw) position. Release
switch to stop. To rotate the turret counterclockwise,
push and hold this toggle switch to the “ ð“ (ccw)
position. Release switch to stop.
6. BOOM RETRACT/EXTEND TOGGLE SWITCH -
This switch controls the retraction and extension of the
telescoping boom arm. To retract the boom arm, push
andhold this toggle switch to the “ ñ“ (retract) position.
Release switch to stop. To extend the boom arm, push
and hold this toggle switch to the “ò“ (extend) position.
Release switch to stop.
5. PLATFORM LEVELING TOGGLE SWITCH - This
switchcontrolsthelevelingofthe platform if adjustment
is necessary. If the platform is tilted away from the jib,
pushand holdthistoggle switchtothe “ ñ“(up)position.
Releaseswitchwhenlevel. If theplatform istilted toward
the jib, push and hold this toggle switch to the
“ò“ (down) position. Release switch when level.
7. PLATFORM LEFT/RIGHT ROTATION TOGGLE
SWITCH - This switch controls left and right rotation of
the platform. To rotate the platform to the left, push and
holdthistoggleswitch tothe “ï“ (left) position. Release
switch to stop. To rotate the platform to the right, push
and hold this toggle switch to the “ ð“ (right) position.
Base Controls - Electrical
Base Control Panel
Figure 2-1. Base Control Panel and Label
11
9
8
7
6
4
5
3
2
10
1
MA33N201
SECTION 2, Page 7
SJKB Battery Powered
3. RISER UP/DOWN TOGGLE SWITCH - This switch
controlstheup/downmovementofthe riser section. To
raise the riser section, push and hold this toggle switch
to the “ ñ“ (up) position. Release switch to stop. To
lowerthe riser section, push and hold this toggle switch
to the “ ò “ (down) position. Release switch to stop.
4. JIB UP/DOWN TOGGLE SWITCH - This switch
controls the up/down movement of the jib. To move the
jibupward,pushandholdthis toggle switch to the “ ñ“
(up) position. Release switch to stop. To move the jib
downward,push and hold this toggle switchto the “ ò“
(down) position. Release switch to stop.
5. TURRET ROTATION TOGGLE SWITCH - This
switch controls clockwise and counterclockwise turret
rotation. To rotate the turret clockwise, push and hold
this toggle switch to the “ ï“ (left) position. Release
switch to stop. To rotate the turret counterclockwise,
push and hold this toggle switch to the “ ð“ (right)
position. Release switch to stop.
6. BOOM RETRACT/EXTEND TOGGLE SWITCH -
This switch controls the retraction and extension of the
telescoping boom arm. To retract the boom arm, push
andhold this toggle switch to the “ ñ“ (retract) position.
Release switch to stop. To extend the boom arm, push
andhold this toggle switch tothe“ò“ (extend)position.
Release switch to stop.
7. PLATFORM LEVELING TOGGLE SWITCH - This
switchcontrolsthelevelingofthe platform if adjustment
is necessary. If the platform is tilted away from the jib,
pushandholdthistoggleswitch tothe “ ñ“(up) position.
Releaseswitchwhenlevel. If theplatform istilted toward
the jib, push and hold this toggle switch to the “ ò“
(down) position. Release switch when level.
8. PLATFORM LEFT/RIGHT ROTATION TOGGLE
SWITCH -This switch controls left and right rotation of
theplatform. Torotate theplatformtotheleft, push and
hold this toggle switch to the “ ï“ (left) position.
Release switch to stop. To rotate the platform to the
right,push and hold this toggle switch to the“ð“(right)
position. Release switch to stop.
9. BOOM SPEED CONTROL ROTARY SWITCH -
This rotary switch allows the operator to control the
speed of the lifting, lowering and rotation functions. To
reducethe speed of thefunctionsturn the knobcounter-
clockwise. To increase the speed of the functions turn
the knob clockwise.
10. DRIVE/STEER CONTROLLER - This lever-type
controller allows the operator to drive in forward or
reverse and by using the rocker switch on top of the
controller to steer left or right.
11. HORN PUSH BUTTON (Option) - If equipped with
the horn option , the horn is sounded by depressing the
red button on the Drive/Steer controller handle.
12. TILT SENSOR INDICATOR LIGHT - This red
indicatorlightwarnsthe operator that the work platform
ison a slopewhichexceeds the limitsforsafe operation.
A warning buzzer will also sound.
13. FUNCTION ENABLE LIGHT - This red indicator
light tells the operator that the foot switch has been
depressedand poweris availabletooperate thecontrols
on the operator’s control console.
OPERATING PROCEDURES
Before operating any control, read and completely
understand ALL Dangers, Warnings and Cautions
on the work platform and in this operator’s manual.
Ma40-211
2. BOOM UP/DOWN TOGGLE SWITCH -Thisswitch
controls the up/down movement of the boom section.
To raise the boom section, push and hold this toggle
switch to the “ ñ“ (up) position. Release switch to
stop. To lower the boom section, push and hold this
toggle switch to the “ ò“ (down) position. Release
switch to stop.
TSILKCEHCSROTAREPO
GNIWOLLOFEHTTSETRO/DNATCEPSNI
TFIHSHCAEFOGNINNIGEBEHTTAROYLIAD
.SLORTNOCYCNEGREMEDNAGNITAREPO.1
.SECIVEDYTEFAS.2
.SECIVEDEVITCETORPLANOSREP.3
.SLEEHWDNASERIT.4
REHTODNA)DEPPIUQEFI(SREGGIRTUO.5
.SERUTCURTS
ROFMETSYSLEUFDNACILUARDYH,RIA.6
.SKAEL
.ERAWDRAHROSTRAPGNISSIMROESOOL.7
.SSENRAHGNIRIWROSELBAC.8
LORTNOC,SGNINRAW,SDRACALP.9
.)S(LAUNAMGNITAREPODNASGNIKRAM
.METSYSLIARDRAUG.01
.)DEPPIUQEOSFI(METSYSLIOENIGNE.11
.LEVELDIULFYRETTAB.21
RIOVRESERDIULFEKARBDNACILUARDYH.31
.LEVEL
.)DEPPIUQEOSFI(LEVELTNALOOC.41

SECTION 2, Page 3
SJKB Battery Powered
1. EMERGENCY TURRET ROTATING MECHANISM
- This mechanism is located on the rotation gear under
the turret. Using a 7/8" 6-point socket with ratchet to
rotate the turret back to center. NOTE: On European
models a 7/8" 6-point ratcheting wrench (SKYJACK
#701517)is locatedinsidethe hydraulic/electric cabinet.
Base Controls - Mechanical
Emergency Turret Rotating Mechanism
Figure 2-3A. Emergency Turret Rotating Mechanism
(SJKB-33N)
Figure 2-3B. Emergency Turret Rotating Mechanism
(SJKB-33i, 33C, 40i, 40C)
350 Amp Battery Connectors
Figure 2-2A. 350 Amp Battery Connectors
(SJKB-33N)
1. 350 AMP BATTERY CONNECTORS
1. 350 AMP BATTERY CONNECTOR - These
connectors, located adjacent to the battery charger,
disconnects the batteries and all power to both control
stations in the event of an emergency and for work
platform shut down. This connection MUSTbe made to
operateany control oneithercontrol station. The battery
chargerworksindependentlyof this connection and the
batteries may still be charged while these connectors
are separated.
1
1
MA33N202 MA33N203
Figure 2-2B. 350Amp Battery Connectors
(SJKB-33i, 33C, 40i, 40C)
1
Mawb203
1. EMERGENCY TURRET ROTATING MECHANISM
1
Mawb204
SECTION 2, Page 6 SJKB Battery Powered
WARNING
WARNING
1. EMERGENCY STOP BUTTON
2. BOOM UP/DOWN TOGGLE SWITCH
3. RISER UP/DOWN TOGGLE SWITCH
4. JIB UP/DOWN TOGGLE SWITCH
5. TURRET ROTATE TOGGLE SWITCH
6. BOOM EXTEND/RETRACT TOGGLE
SWITCH
7. PLATFORM LEVELING TOGGLE SWITCH
8. PLATFORM ROTATE TOGGLE SWITCH
9. BOOM SPEED CONTROLROTARY SWITCH
10. DRIVE/STEER CONTROLLER
11. HORN PUSH-BUTTON
12. TILT SENSOR INDICATOR LIGHT
13. FUNCTION ENABLE LIGHT
Operator’s Control Console
Figure 2-8. Operator’s Control Console and Label
1
Platform Controls - Electrical
Foot Switch
Figure 2-7. Foot Switch
1. FOOT SWITCH
1. FOOT SWITCH - The foot switch is located on the
platform. When the foot switch is depressed and held,
powerisbroughtto thecontrols onthe operator’scontrol
console. When the foot switch is released, the controls
on the operator’s control console are cutout.
IMPORTANT NOTE
ThefootswitchMUSTbedepressedandheldtouse
any control on the operator’s control console.
Before releasing the foot switch, the controllers should
be returned to the neutral position. Work platform
motion will stop when the foot switch is released.
When driving and foot switch is released, parking
brake engages instantly.
OPERATOR’S CONTROL CONSOLE - This metal
control station is located at the front of the platform. It
contains the following controls:
IMPORTANT NOTE
ThefootswitchMUSTbedepressedandheldtouse
any control on the operator’s control console.
Refer to Operating Procedures for detailed
instructions on operating these controls.
1. EMERGENCY STOP BUTTON - This red
mushroom-shaped button is designed to cut power to
the platform controls when struck in the event of an
emergency or at work platform shutdown. To restore
power, simply pull button out.
MA33N209
1312
11 109
87
6
5
43
21
MA33N212
Depressing the Emergency Stop Button instantly
engages the parking brakes.

SECTION 2, Page 4 SJKB Battery Powered
1. EMERGENCY LOWERING VALVE ON RISER
2. EMERGENCYLOWERING VALVE ON BOOM
3. EMERGENCY LOWERING VALVE ON JIB
1. EMERGENCY LOWERING VALVE ON RISER -
Locatedatthe baseontherisercylinder,thisvalveallows
riser lowering in the event of an emergency or an
electrical system failure. Turning the valve knob
counterclockwise allows the riser to gradually lower.
ValveMUST be fullyclosed (clockwise)to restorenormal
operation.
Figure 2-5. Emergency Lowering Valves and
Procedure Label
Emergency Lowering Valves
3
2
1
MA33N205 MA33N206
MA33N207
1. TURRET ROTATION SPEED CONTROL VALVE -
Located on the lower left side of the main manifold in
the hydraulic/electric cabinet, this rotary valve when
rotated to a fully closed position (clockwise) allows
maximum turret rotation speed. By opening the valve
(counterclockwise) the turret rotation speed can be
reduced.
Figure 2-4B. Turret Rotation Speed Control Valve
(SJKB-33i, 33C, 40i, 40C)
Base Controls - Hydraulic
Turret Rotation Speed Control Valve
Figure 2-4A. Turret Rotation Speed Control Valve
(SJKB-33N)
1
MA33N204
1. TURRET ROTATION SPEED CONTROL VALVE
1
Mawb205
SECTION 2, Page 5
SJKB Battery Powered
DANGER
DO NOT release the parking brakes on an incline.
DO NOT releasetheparkingbrakeswithoutthewheels
being chocked.
1. PARKING BRAKE RELEASEPLUNGER -Located
on the brake manifold in the hydraulic/electric
cabinet,whenthisred plunger on the brake valve is
depressed, the brake valve opens allowing
accumulatorpressure toimmediatelydisengage the
parking brakes.
Step 1. Disconnect the batteries by separating the 350
Amp Battery Connectors.
Step 2. Firmly depress the red plunger knob on the
brake manifold. The brakes are now released.
Figure 2-6A. Parking Brake Release Plunger
(SJKB-33N)
1. PARKING BRAKE RELEASE PLUNGER
NOTE:
On European models, the manual lowering valve
knobs are located inside the hydraulic/electric
cabinet on the turret.
Parking Brake Release Plunger
2. EMERGENCY LOWERING VALVE ON BOOM -
Located at the base on the boom cylinder, this valve
allows boom lowering in the event of an emergency or
an electrical system failure. Turning the valve knob
counterclockwise allows the boom to gradually lower.
ValveMUSTbe fullyclosed (clockwise)to restorenormal
operation.
3. EMERGENCY LOWERING VALVE ON JIB -
Locatedatthebaseonthe jib cylinder, this valve allows
jiblowering in theeventof an emergency oranelectrical
systemfailure.Turning the valve knobcounterclockwise
allows the jib to gradually lower. Valve MUST be fully
closed (clockwise) to restore normal operation.
1
The brake will automatically return to normal
operation when any hydraulic function is selected.
MA33N208
Figure 2-6B. Parking Brake Release Plunger
(SJKB-33i, 33C, 40i, 40C)
1
Mawb209
NOTE