Skyjack 6826El User manual

SJIII Series E
For Service 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 3451 Swenson Ave., St. Charles, IL. 60174 .................. FAX [phone]
For Parts & Service in Europe please call .................................................. 44-1691-676-235
Skyjack Europe, Glovers Meadow, Maesbury Rd., Oswestry, Shropshire, U.K.......FAX [phone]
129924AB Printed in Canada April 2006
The Conventionals
Models 6826E and 6832E
OPERATING MANUAL
ANSI & CSA
This manual MUST be kept and stored with the aerial platform at all times.

SJIII Series E - CONVENTIONALS
April 2006
SKYJACK, Page 2
OPERATING MANUAL
ANSI/CSA
This manual MUST be kept and stored with the aerial platform at all times.
USE THE SERIAL NUMBER OF YOUR MACHINE TO DETERMINE THE
CORRECT OPERATING MANUAL TO USE
Manual Part # 118931AI 129924AB
(ANSI/CSA)
129923AB
(CE)
Release Date May 2002 April 2006 April 2006
6826 E 75643 & Below 75644 & Above 75644 & Above
M
O
D
E
L
S
6832 E 83154 & Below 83155 & Above 83155 & Above
60304AF

April 2006
SJIII Series E - CONVENTIONALS SKYJACK, Page 3
IMPORTANT
IMPORTANT indicates a procedure(s) essential for
safe operation and which, if not followed, may
result in a malfunction or damage to the machine.
This Safety Alert Symbol means attention!
Become alert! Your safety is involved.
The Safety Alert 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. Fol-
low the instructions in the safety message.
DANGER
DANGER indicates an imminently hazardous
situation which, if not avoided, will result in death
or serious injury.
WARNING
WARNING indicates a potentially hazardous
situation which, if not avoided, could result in
death or serious injury.
CAUTION
CAUTION indicates a potentionally hazardous
situation which, if not avoided, may result in
minor or moderate injury. It may also be
used to alert against unsafe practices.

SJIII Series E - CONVENTIONALS
April 2006
SKYJACK, Page 4
Table of Contents
Read and Heed
Aerial Platform Definition .............................................................................................................................................6
Purpose of Equipment .................................................................................................................................................6
Use of Equipment ........................................................................................................................................................6
Manual .........................................................................................................................................................................6
Operator ......................................................................................................................................................................6
Optional Accessories ...................................................................................................................................................6
Scope of this Manual...................................................................................................................................................6
Section 1 - About Your Aerial Platform
1.1 Major Assemblies ...............................................................................................................................................7
1.2 Platform ..............................................................................................................................................................7
1.3 Operator’s Control Box ......................................................................................................................................7
1.4 Manual Storage Box ...........................................................................................................................................7
1.5 Lifting Mechanism ..............................................................................................................................................7
1.6 Maintenance Support .........................................................................................................................................7
1.7 Base ...................................................................................................................................................................7
1.8 Tilt Sensing System ............................................................................................................................................8
1.9 Serial Number Nameplate ..................................................................................................................................8
1.10 Major Components .............................................................................................................................................9
1.11 Standard and Optional Features ...................................................................................................................... 10
1.12 Operator Safety Reminders .............................................................................................................................. 11
1.13 Electrocution Hazard ........................................................................................................................................11
1.14 Safety Precautions ............................................................................................................................................ 12
Section 2 - Operation
2.1 General ............................................................................................................................................................. 15
2.1-1 Operator Qualifications ..................................................................................................................... 15
2.1-2 Operator’s Responsibility for Maintenance .......................................................................................15
2.1-3 Maintenance and Inspection Schedule ............................................................................................. 15
2.1-4 Owner’s Inspections .......................................................................................................................... 15
2.2 Component Identification ................................................................................................................................. 16
2.2-1 Emergency Main Power Disconnect Switch ...................................................................................... 16
2.2-2 Motion Alarm .................................................................................................................................... 16
2.2-3 Tilt Alarm ........................................................................................................................................... 16
2.2-4 Base Controls ................................................................................................................................... 16
2.2-5 Parking Brake System ...................................................................................................................... 17
2.2-6 Battery Charger ................................................................................................................................ 17
2.2-7 Emergency Lowering System ........................................................................................................... 17
2.2-8 Maintenance Support ....................................................................................................................... 18
2.2-9 AC Outlet on Platform ....................................................................................................................... 18
2.2-10 Operator’s Control Box ..................................................................................................................... 19
2.2-11 Outrigger Controls ............................................................................................................................ 19
2.2-12 Folding Guardrail System ................................................................................................................. 20
2.2-13 Lanyard Attachment Ring ................................................................................................................. 20

April 2006
SJIII Series E - CONVENTIONALS SKYJACK, Page 5
Table of Contents
Section 2 - Continued
2.3 Component Identification (Special Options) .................................................................................................... 21
2.3-1 1500W AC Inverter (If Equipped) ....................................................................................................... 21
2.3-2 Powered Extension Deck Control Box (If Equipped) ........................................................................21
2.4 Setup Procedure ..............................................................................................................................................22
2.5 Start Operation .................................................................................................................................................24
2.5-1 Pre-Start Inspection .......................................................................................................................... 24
2.5-2 Operator’s Checklist .........................................................................................................................24
2.5-3 To Raise the Platform using the Base Controls ................................................................................. 25
2.5-4 To Lower the Platform using the Base Controls ................................................................................25
2.5-5 To Raise the Platform using the Operator’s Control Box ................................................................... 25
2.5-6 To Lower the Platform using the Operator’s Control Box ..................................................................26
2.5-7 To Drive Forward or Backward .......................................................................................................... 27
2.5-8 To Steer .............................................................................................................................................27
2.5-9 To Extend/Retract Manual Extension Deck ....................................................................................... 27
2.5-10 To Extend/Retract Powered Extension Deck (If Equipped) ............................................................... 28
2.5-11 Hydraulic Outriggers (If Equipped) ................................................................................................... 28
2.5-11a Before Operation ........................................................................................................ 28
2.5-11b Extending the Outriggers ............................................................................................28
2.5-11c Retracting the Outriggers ...........................................................................................29
2.5-12 Electrical Inverter (If Equipped) ......................................................................................................... 29
2.5-13 Shutdown Procedure ........................................................................................................................29
2.6 Loading/Unloading ...........................................................................................................................................30
2.6-1 Lifting ................................................................................................................................................30
2.6-2 Driving ...............................................................................................................................................31
2.7 Winching and Towing ....................................................................................................................................... 32
2.7-1 To Release the Parking Brake Manually ............................................................................................32
2.8 Emergency Lowering Procedure ...................................................................................................................... 33
2.9 Battery Maintenance ........................................................................................................................................ 34
2.9-1 Battery Service Procedures .............................................................................................................. 34
2.9-2 Battery Charging Operation .............................................................................................................. 34
2.10 Tables ...............................................................................................................................................................38
2.11 Labels ...............................................................................................................................................................43
List of Tables
Table 2-1. Specifications and Features ......................................................................................................................38
Table 2-2. Owner’s Annual Inspection Record ...........................................................................................................39
Table 2-3. Floor Loading Pressure .............................................................................................................................40
Table 2-4. Maximum Platform Capacities (Evenly Distributed) ...................................................................................42
Table 2-5. Maintenance and Inspection Schedule .....................................................................................................43

SJIII Series E - CONVENTIONALS
April 2006
SKYJACK, Page 6
Read and Heed
SKYJACK Inc. is continuously improving and expanding product features on its equipment, therefore,
specifications and dimensions are subject to change without notice.
Aerial Platform Definition
A mobile device that has an adjustable position platform supported from ground level by a structure.
Purpose of Equipment
The SKYJACK SJIII series aerial platforms are designed to transport and raise personnel, tools and materials to
overhead work areas.
Use of Equipment
The aerial platform is a highly maneuverable, mobile work station. Lifting and driving MUST be on a flat, level,
compacted surface.
The aerial platform can be driven over uneven terrain only when the platform is fully lowered.
Manual
The operating manual is considered a fundamental part of the aerial platform. It is a very important way to
communicate necessary safety information to users and operators. A complete and legible copy of this manual
must be kept in the provided weather-resistant storage compartment on the aerial platform at all times.
Operator
The operator MUST read and completely understand both this operating manual and the safety panel label
located on the platform and ALL other warnings in this manual and on the aerial platform. Compare the labels
on the aerial platform with the labels found within this manual. If any labels are damaged or missing, replace
them immediately.
Optional Accessories
The SKYJACK aerial platform is designed to accept a variety of optional accessories. These are listed under
“Standard and Optional Features” in Section 1.11.
Operating instructions for these options (if equipped) are located in Section 2 of this manual.
For options not listed under “Standard and Optional Features”, contact the SKYJACK Service Department at
 : :
 : :
 :
: 800 275-9522
: 630 262-0006
Include the model and serial number for each applicable machine.
Scope of this Manual
a. This manual applies to the ANSI/SIA, CSA and CE versions of the SJIII Series aerial platform models listed
on Table 2-1.
- Equipment identified with “ANSI” meets the ANSI SIA-A92.6-1999 standard.
- Equipment identified with “CSA” meets the CSA B354.2-01 standards.
b. CSA (Canada) and CE (Europe)
Operators are required to conform to national, state/province and local health and safety regulations
applicable to the operation of this aerial platform.
c. ANSI/SIA (United States)
Operators are required by the current ANSI/SIA A92.6 standards to read and understand His/Her
RESPONSIBILITIES in the Manual of Responsibilities before they use or operate this aerial platform.

SKYJACK, Page 7
April 2006
SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
1
1. About Your Aerial Platform
This section provides general information about your
aerial platform. It describes the major components,
standard and optional features, safety reminders and
precautions.
1.1 Major Assemblies
The aerial platform consists of three major assemblies:
the platform, the lifting mechanism and the base. An
operator’s control box is mounted on one of the
platform guardrails. Auxiliary and emergency controls
are located at the base.
1.2 Platform
The platform is constructed of a tubular support frame,
a skid-resistant “diamond plate” deck surface and 40”
to 43-1/2" (1016 - 1100mm) hinged guardrails with 6"
(152mm) toe boards and mid-rails. The platform can be
entered from the rear through an entry chain or optional
spring-returned gate with latch. The platform is also
equipped with an extension platform.
1.3 Operator’s Control Box
A removable control box, mounted at the front right of the
platform, contains controls for aerial platform motion and
emergency stopping.
1.4 Manual Storage Box
This weather-resistant box is mounted to the inside of
the hydraulic cabinet door at the base or at the front
of the platform. It contains the
Operating Manual, the Operating/
Maintenance and Parts Manual and
other important documentation. The
Operating Manual for this make and
model of aerial platform MUST remain
with the aerial platform and should be
stored in this box.
1.5 Lifting Mechanism
Thelifting mechanism is constructed of formed steel ortube
sections making up a scissor-type assembly. The scissor
assembly is raised and lowered by single-acting hydraulic
lift cylinders with holding valves. A two-section pump,
driven by an electric motor, provides hydraulic power to
the lift cylinders.
1.6 Maintenance Support
A maintenance support is located inside the lifting
mechanism. When properly positioned, it can support the
scissor assembly and empty platform. The maintenance
support MUST be used during inspection and maintenance
or when repairs are being performed within the lifting
mechanism.
1.7 Base
The base is a rigid, one-piece weldment which supports
two side cabinets or two swing out trays.
• One tray contains the hydraulic and electrical
components. The other tray contains battery
charger and eight (8) 6 volt batteries.
• The front axle has two non-driven wheels,
steerable by a hydraulic cylinder.
• The rear axle is a rigid axle with a self-locking
differential and an integral gearbox.
• A variable speed 48 V DC electric motor and
holding brake is flange mounted to the gearbox.

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Section 1 - About Your Aerial Platform
1.8 Tilt Sensing System
The tilt sensing system located on the base of the aerial
platform is designed to prevent lifting or driving when
the machine is on a slope greater than a predetermined
limit. If in this situation the platform must be fully
lowered immediately.
1.9 Serial Number Nameplate
The serial number nameplate, located at the rear of
the machine, lists the following:
• Model number
• Serial number
• Machine weight
• Maximum drivable height
• Maximum capacities
• Maximum number of persons permissible on the
platform
• Voltage
• System pressure
• Lift pressure
• Maximum platform height
• Maximum wheel load
• Maximum wind speed
• Maximum manual force
• Maximum incline
Use this information for proper operation and mainte-
nance and when ordering service parts.

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April 2006
SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
1.10 Major Components
SKYJACK SJIII Series Aerial Platform
(Model 6832E shown)
Base
Main
Platform
Operator’s
Control Box
Extension
Platform
Hydraulic/
Electric
Tray
Lifting
Mechanism

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SKYJACK, Page 10 SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
1.11 Standard and Optional Features
SJIII 68xxE Series –
C
onventionals – SPECIFICATIONS – ANSI
/
CSA
Standard Equipment
Descent alarm
Motion alarm
Joystick controller with proportional lift & drive functions *
Swing-out side trays
Spring-applied, electronically-released parking brakes
Manual lowering system with electric holding valves on lift cylinders
Operator horn
3-foot manual extension platform
AC outlet on platform
Lanyard attachment rings
Urethane foam-filled tires
Optional Equipment
Spring-loaded full-height gate
Spring-loaded half-height gate
Flashing amber light
800W AC generator
Hydraulically-powered extension platform
Shop air hose to platform
Propane/gasoline or diesel engine package
Scissor guards
Lowering warning system
Light duty pipe rack
Outriggers and outriggers alarm
1500W electrical inverter
60425AA-ANSI
* Platform lowering and steering are not proportional.

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April 2006
SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
1.12 Operator Safety Reminders
A study conducted by St. Paul Travelers showed that most accidents are caused by the failure of the operator to follow
simple and fundamental safety rules and precautions.
You, as a careful operator, are the best insurance against an accident. Therefore, proper usage of this aerial platform
is mandatory. The following pages of this manual should be read and understood completely before operating the
aerial platform.
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.
Any modifications from the original design are strictly forbidden without written permission from SKYJACK Inc.
1.13 Electrocution Hazard
This aerial platform is not electrically insulated. Maintain a Minimum Safe Approach Distance (MSAD) from energized
power lines and parts as listed below. The operator must allow for the platform to sway, rock or sag. This aerial platform
does not provide protection from contact with or proximity to an electrically charged conductor.
DO NOT USE THE MACHINE AS A GROUND FOR WELDING.
DO NOT OPERATE THE MACHINE DURING LIGHTNING OR STORMS.
Failure to comply with your required responsibilities in the use and operation of the aerial platform
could result in death or serious injury!
Warning
DANGER
Avoid Power Lines
Minimum Safe Approach Distance
ANSI/SIA A92.6-1999 &
CSA B354.2-01 Requirements
Voltage Range Minimum Safe Approach Distance
(Phase to Phase) Feet
0 To 300V Avoid Contact
Over 300V to 50KV 10
Over 50KV to 200KV 15
Over 200KV to 350KV 20
Over 350KV to 500KV 25
Over 500KV to 750KV 35
Over 750KV to 1000KV 45
FAILURE TO AVOID THIS HAZARD WILL RESULT IN DEATH OR SERIOUS INJURY!
60023AC-ANSI

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SKYJACK, Page 12 SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
•DO NOT increase the lateral sur-
face area of the platform. Increas-
ing the area exposed to the wind
will decrease machine stability.
•DO NOT drive or elevate the aerial
platform if it is not on a firm level
surface. Do not drive elevated near
depressions or holes of any type,
loading docks, debris, drop-offs
and surfaces that may affect the
stability of the aerial platform.
•If operation in areas with holes
or drop-offs is absolutely nec-
essary, elevated driving shall not
be allowed. Position the aerial
platform horizontally only with the
platform fully lowered. After ensur-
ing that all 4 wheels or outriggers
(if equipped) have contact with
level firm surface, the aerial plat-
form can be elevated. After eleva-
tion, the drive function must not
be activated.
•Elevated driving must only be
done on a firm level surface.
•DO NOT ascend or descend a
grade when elevated. When fully
lowered, ascending or descend-
ing, only grades up to the rated
maximum listed in Table 2-1 are
permissible.
Warning
Failure to heed the following safety precautions could
result in tip over, falling, crushing, or other hazards
leading to death or serious injury
•KNOW all national, state or territorial/provincial and
local rules which apply to your MACHINE and
JOBSITE.
•TURN the emergency main power disconnect switch
off when leaving the machine unattended. Remove
the key to prevent unauthorized use of the aerial plat-
form.
•WEAR all the protective clothing and personal safety
devices issued to you or called for by job conditions.
•DO NOT wear loose clothing,
dangling neckties, scarves,
rings, wristwatches or other
jewelry while operating this lift.
•AVOID entanglement with
ropes, cords or hoses.
•AVOID falling. Stay within the
boundaries of the guardrails.
•DO NOT raise the aerial platform
in windy or gusty conditions.
1.14 Safety Precautions
Know and understand the safety precautions before going on to next section.

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SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
1.14 Safety Precautions (Continued)
Know and understand the safety precautions before going on to next section.
•DO NOT raise the aerial platform
while the machine is on a truck, fork
lift or other device or vehicle.
•BE AWARE of crushing hazards.
Keep all body parts inside platform
guardrails.
•DO NOT lower the platform un-
less the area below is clear of
personnel and obstructions.
•ENSURE that there are no personnel or obstructions
in the path of travel, including blind spots.
•BE AWARE of blind spots when operating the aerial
platform.
•STUNT driving and horseplay are prohibited.
•ENSURE ALL tires are in good condition and lug
nuts are properly tightened.
•DO NOT alter or disable limit switches or other safety
devices.
•DO NOT use the aerial platform without guardrails,
locking pins and the entry gate/chain/bar in place.
•DO NOT exceed the rated capacity of the aerial plat-
form. Do make sure the load is evenly distributed on
the platform.
•DO NOT operate on surfaces not capable of holding
the weight of the aerial platform including the rated
load, e.g., covers, drains and trenches.
•DO NOT operate an aerial platform
that has ladders, scaffolding or
other devices mounted on it to in-
crease its size or work height. It is
prohibited.
•DO NOT exert side forces on aerial
platform while elevated.
•DO NOT use the aerial platform as
a crane. It is prohibited.
•DO NOT sit, stand or climb on the
guardrails. It is prohibited.
•DO NOT climb on scissor arm as-
sembly. It is prohibited.
•BE AWARE of overhead obstruc-
tions or other possible hazards
around the aerial platform when
driving or lifting.

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SKYJACK, Page 14 SJIII Series E - CONVENTIONALS
Section 1 - About Your Aerial Platform
1.14 Safety Precautions (Continued)
Know and understand the safety precautions before going on to next section.
•DO NOT overload the platform. The lift relief valve
does not protect against overloading when the
platform is elevated.
•DO NOT attempt to free a snagged platform with
lower controls until personnel are removed from
the platform.
•DO NOT position the aerial platform against an-
other object to steady the platform.
•DO NOT place materials on the guardrails or ma-
terials that exceed the confines of the guardrails
unless approved by Skyjack.
Warning
Entering and exiting the aerial platform should only
be done using the three points of contact system.
• Use only equipped access openings and
ladders.
• Enter and exit only when the aerial platform
is in the fully retracted position.
• Do use three points of contact to enter and exit
the platform. Enter and exit the platform from the
ground only. Face the machine when entering or
exiting the platform.
•Three points of contact means that two hands
and one foot OR one hand and two feet are in
contact with the aerial platform or the ground at
all times during entering and exiting.
Jobsite Inspection
• Do not use in hazardous locations.
• Perform a thorough jobsite inspection prior to
operating the aerial platform to identify potential
hazards in your work area.
• Be aware of moving equipment in the area. Take
appropriate actions to avoid collision.
Warning
An operator should not use any aerial platform
that:
• does not appear to be working properly.
• has been damaged or appears to have worn
or missing parts.
• has alterations or modifications not approved
by the manufacturer.
• has safety devices which have been altered
or disabled.
Failure to avoid these hazards could result in
death or serious injury.

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April 2006
SJIII Series E - CONVENTIONALS
Section 2 - Operation
General
2. Operation
This section provides the necessary information needed
to operate the aerial platform. It covers the basic and
optional components of the machine, operation and
start procedures, winching and towing procedures,
loading/unloading, tires specifications, labels, platform
capacities and tables related to the proper mainte-
nance of this aerial platform. It is important that the
user reads and understands this section before oper-
ating the aerial platform.
2.1 General
In order for this aerial platform to be in good working
condition, it is important that the operator follows the
maintenance and inspection schedule referred to in
this section.
2.1-1 Operator Qualifications
• ONLY trained and authorized personnel SHALL
be permitted to operate an aerial platform.
• Safe use of this aerial platform requires the
operator to understand the limitations and
warnings, operating procedures and operator’s
responsibility for maintenance. Accordingly, the
operator MUST understand and be familiar with
this operating manual, its warnings and
instructions, manual of responsibilities and ALL
warnings and instructions on the aerial platform.
• The operator MUST be familiar with employer’s
work rules and related government regulations
and be able to demonstrate the ability to
understand and operate THIS make and model
of aerial platform in the presence of a qualified
person.
2.1-2 Operator’s Responsibility for Maintenance
Warning
Maintenance MUST be performed by competent
personnel who are familiar with mechanical
procedures.
Death or serious injury could result from the use of
an aerial platform that is not properly maintained or
kept in good working condition.
• The operator must be sure that the aerial platform
has been properly maintained and inspected
before using it.
• The operator must perform ALL the daily inspections
found in Table 2-5, even if the operator is not directly
responsible for the maintenance of this aerial
platform.
2.1-3 Maintenance and Inspection Schedule
• The inspection points covered in Table 2-5 indicate
the areas of the aerial platform to be maintained or
inspected and at what intervals the maintenance and
inspections are to be performed.
• The actual operating environment of the aerial
platform may affect the maintenance schedule.
Warning
Use original or equivalent to the original parts and
components for the aerial platform.
2.1-4 Owner’s Inspections
It is the responsibility of the owner to arrange daily, weekly,
monthly and annual inspections of the aerial platform. Refer
to Table 2-5 for recommended maintenance and inspec-
tion areas and intervals. A record of annual inspection is
kept on a label located on the scissor assembly. Refer to
Table 2-3 in this manual.
2

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SKYJACK, Page 16 SJIII Series E - CONVENTIONALS
Section 2 - Operation Component Identification
2.2-4 Base Controls
This control station is located in the hydraulic/electric
tray. It contains the following controls:
Figure 2-2. Electrical Panel
1. Buzzer Alarm - This audible pulse alarm sounds
when platform is being electrically lowered. On
machines with certain options, this alarm sound
when any control function is selected.
2. Hourmeter - This gauge records the accumulated
time of operation of the aerial platform.
3. Circuit Breaker Resets - In the event of a power
overload or positive circuit grounding, the circuit
breaker will pop out. Push the breaker back in to
reset.
4. Platform UP/DOWN Toggle Switch - This toggle
type switch raises or lowers the platform to a
desired height.
5. Enable Switch -This switch, when activated,
brings power to the UP/DOWN toggle switch.
2.2 Component Identification
The following descriptions are for identification,
explanation and locating purposes only.
2.2-1 Emergency Main Power Disconnect Switch
Emergency Main Power Disconnect Switch - This
switch is located at the rear of the base.
Figure 2-1. Emergency Main Power
Disconnect Switch
1. Emergency Main Power Disconnect Switch -
This switch, when in “OFF” position, disconnects
power to all circuits. Switch MUST be in “ON”
position to operate any circuit.
2.2-2 Motion Alarm
The aerial platform is equipped with a motion alarm.
The alarm produces an audible sound accompanied
by the amber light (if equipped) when any control func-
tion is selected.
2.2-3 Tilt Alarm
The aerial platform is equipped with a device which
senses when the machine is out of level in any direction.
When activated, it disables drive and lift functions of
the aerial platform and an alarm produces an audible
sound accompanied by the amber light (if equipped).
This alarm activates once every 1.5 seconds. Lower
platform completely, then reposition machine so that
it is level before raising platform.
Note
If the tilt alarm sounds and the platform does not,
or only partially raises, immediately lower the
platform and ensure that the machine is on a firm
LEVEL surface.
11
1
3
2
45

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April 2006
SJIII Series E - CONVENTIONALS
Component Identification Section 2 - Operation
2.2-6 Battery Charger
This machine is battery-powered and is equipped with
a battery charger.
Battery Charger - The charger is located inside the bat-
tery tray. Refer to Section 2.9-2 for details on charging
operation.
Figure 2-4. Battery Charger
2.2-5 Parking Brake System
The parking brake system is located at the rear axle
on the back of the machine.
Figure 2-3. Parking Brakes
Parking Brakes - The parking brakes are devices that
are always mechanically engaged until hydraulically
or manually released. Before towing or winching, the
brakes have to be released manually. Refer to Section
2.7-1.
2.2-7 Emergency Lowering System
The emergency lowering system allows platform
lowering in the event of an emergency or an electrical
system failure. Refer to Section 2.8 for the emergency
lowering procedure. The system contains the following
controls:
Figure 2-5. Emergency Lowering System
1. Holding Valve Manual Override Knob - Located
on the holding valve at the bottom of each lift
cylinder.
2. Access Rod - Located at the left side of the
base.
3. Emergency Lowering Valve - Located at the rear
of the hydraulic/electric tray.
3
2
1

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SKYJACK, Page 18 SJIII Series E - CONVENTIONALS
Section 2 - Operation Component Identification
2.2-8 Maintenance Support
Figure 2-6. Maintenance Support
1. Maintenance Support - The maintenance
support is a safety mechanism designed to
support the scissor assembly. When properly
positioned it can support the scissor assembly
and empty platform. The maintenance support
MUST be used when inspection and/or
maintenance is to be performed within the lifting
mechanism.
Warning
The maintenance support must be used when
inspection and/or maintenance or repairs are to be
performed within the lifting mechanism.
Failure to use this safety mechanism could result
in death or serious injury.
Proper Use of Maintenance Support
•Remove all material from platform.
•Raise platform until there is adequate clearance
to swing down the maintenance support. Refer
to Section 2.5-3 on how to raise the platform
using the base controls.
•Swing maintenance support down from storage
bracket into a vertical position.
•Remove hands and arms from scissor assembly
area.
•Lower platform until bottom end of maintenance
support contacts the labeled cross bar and
scissor assembly are supported by maintenance
support. Refer to Section 2.5-4 on how to lower
the platform using the base controls.
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To Store the Maintenance Support
• Turn on emergency main power disconnect
switch.
• Raise platform until there is adequate clearance
to swing up the maintenance support.
• Swing bar up into storage bracket.
• Lower platform.
Warning
Do not reach through the scissor assembly when
the platform is raised without the maintenance
support properly positioned.
Failure to avoid this hazard could result in death
or serious injury.
2.2-9 AC Outlet on Platform
AC Outlet on Platform - This outlet is a source of
110V/220V power on the platform.
Figure 2-7. AC Outlet on Platform

SKYJACK, Page 19
April 2006
SJIII Series E - CONVENTIONALS
Component Identification Section 2 - Operation
2.2-10 Operator’s Control Box
Operator’s Control Box - This metal control station is
mounted at the right front of the platform. It contains
the following controls:
Figure 2-8. Operator’s Control Box
1. LIFT/DRIVE/STEER Controller - This one-hand
toggle-type lever controls lift/drive and steer
motions. Internal springs return it to neutral when
stick is released.
2. LIFT/DRIVE Enable Switch - This momentary
switch energizes the proportional controller. It
must be held depressed continuously while
engaging either the lift/drive functions.
3. Warning Alarm Indicator Light - This light glows
and an alarm sounds when an unsafe condition
occurs.
4. BASE/OFF/PLATFORM Select Key Switch -
This three-way selector switch allows the operator
to turn off the power to the aerial platform or to
activate either the base or platform controls.
5. Emergency Stop Button - When depressed, this
red “mushroom-head” push-button switch
disconnects power to the control circuit.
2.2-11 Outrigger Controls
Outrigger Controls - Located on the operator’s
control box, these switches control each outrigger’s
extension and retraction.
Figure 2-9. Outrigger Controls on
Operator’s Control Box
1. Outrigger UP/DOWN Control Toggle Switches
- These switches control the extension and
retraction of each individual outrigger.
2. Enable Push-Button - When depressed and
held, this push-button switch brings power to the
outrigger circuit.
6. LIFT/OFF/DRIVE Select Toggle Switch -
Selecting “OFF” position disconnects power from
both lift and drive circuits. Selecting “LIFT”
position energizes the lift circuit. Selecting
“DRIVE” position energizes the drive circuit.
7. Horn Push-Button - Located on the side of the
operator’s control box, this push-button switch,
when depressed, sounds an automotive-type
horn.
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April 2006
SKYJACK, Page 20 SJIII Series E - CONVENTIONALS
Section 2 - Operation Component Identification
2.2-12 Folding Guardrail System
Folding Guardrail System - When folded down, the
folding guardrail system reduces the height of the
retracted aerial platform for transporting only.
Figure 2-10. Folding Guardrail System
1. Guardrail Locking Pin with Lanyard - To fold
the guardrail system down, remove the locking
pin at each pivot point and lower each guardrail.
To raise the guardrail system, swing up each
guardrail and lock in place with the locking pins
ensuring that the detent ball of each pin is all the
way through and clear of the side of the pivot
brackets (Figure 2-10).
The scissor assembly must be fully lowered
before raising or lowering the guardrails.
Warning
Before operating this aerial platform
check the guardrail system for loose or missing
locking pins. The guardrail system must be upright
and all pins must be locked in place.
Death or serious injury could result if the guardrail
system is not upright or properly locked.
Warning
DETENT BALL
CLEAR OF SIDE
OF PIVOT BRACKET
Correct Position of Locking Pin
2.2-13 Lanyard Attachment Ring
Lanyard Attachment Ring - Use this ring as an at-
tachment point for safety belt/harness tethers. DO NOT
attach belts/harnesses to any other point on the plat-
form. DO NOT use this ring to lift, anchor, secure or
support the platform or any other apparatus or mate-
rial.
Figure 2-11. Lanyard Attachment Ring
Warning
The lanyard attachment ring is used for travel
restraint, within the limits of the platform only.
It is not a fall arresting device!
Use as such could result in death or serious injury.
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