Skyjack SJ800-E series User manual

Series
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]
129911AB Printed in Canada April 2006
Battery Powered
SJ800-E Rough Terrain
OPERATING MANUAL
CE
This manual MUST be kept and stored with the aerial platform at all times.

SJ800 - E Series
Battery Powered
April 2006
SKYJACK, Page 2
OPERATING MANUAL
CE
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 # 117131AH 129910AB
(ANSI/CSA)
129911AB
(CE)
Release Date July 2002 April 2006 April 2006
8831 E 43352 & Below 43354 & Above 43353 & Above
M
O
D
E
L
S
8841 E 43352 & Below 43354 & Above 43353 & Above
60503AB

April 2006
SJ800 - E Series
Battery Powered
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.

SJ800 - E Series
Battery Powered
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 Load Sensing System .........................................................................................................................................8
1.10 Lowering Warning System .................................................................................................................................8
1.11 Serial Number Nameplate .................................................................................................................................8
1.12 Major Components ...........................................................................................................................................9
1.13 Standard and Optional Features ..................................................................................................................... 10
1.14 Operator Safety Reminders ............................................................................................................................. 11
1.15 Electrocution Hazard ....................................................................................................................................... 11
1.16 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 Battery Connector ............................................................................................................................. 16
2.2-2 Electrical Panel .................................................................................................................................. 16
2.2-3 Base Controls ................................................................................................................................... 16
2.2-4 Operator’s Control Box ..................................................................................................................... 17
2.2-5 Tilt Alarm ........................................................................................................................................... 18
2.2-6 AC Outlet on Platform ....................................................................................................................... 18
2.2-7 Battery Charger ................................................................................................................................ 18
2.2-8 Lanyard Attachment Ring .................................................................................................................19
2.2-9 Parking Brake System ....................................................................................................................... 19
2.2-10 Overload Warning System .............................................................................................................. 19
2.2-11 Folding Guardrail System ............................................................................................................... 20
2.2-12 Emergency Lowering System .......................................................................................................... 20
2.2-13 Maintenance Support ...................................................................................................................... 21

April 2006
SJ800 - E Series
Battery Powered
SKYJACK, Page 5
Table of Contents
Section 2 - Continued
2.3 Component Identification (Special Options) ..................................................................................................... 22
2.3-1 Outrigger Controls (Auto-Leveling) (If Equipped) .............................................................................. 22
2.3-2 Power Extension Deck Control Box (If Equipped) .............................................................................22
2.3-3 1500W AC Inverter (If Equipped) .......................................................................................................23
2.3-4 Motion Alarm (If Equipped) ............................................................................................................... 23
2.4 Setup Procedure ...............................................................................................................................................24
2.5 Start Operation .................................................................................................................................................. 26
2.5-1 Pre-Start Inspection ........................................................................................................................... 26
2.5-2 Operator’s Checklist .......................................................................................................................... 26
2.5-3 To Raise the Platform using the Base Controls .................................................................................27
2.5-4 To Lower the Platform using the Base Controls (If Equipped) ........................................................... 27
2.5-5 To Raise the Platform using the Operator’s Control Box ...................................................................27
2.5-6 To Lower the Platform using the Operator’s Control Box ..................................................................28
2.5-7 To Drive Forward or Backward ..........................................................................................................28
2.5-8 To Steer .............................................................................................................................................29
2.5-9 To Extend/Retract the Manual Extension Deck.................................................................................. 29
2.5-10 To Extend/Retract the Powered Extension Deck ...............................................................................29
2.5-11 Hydraulic Outriggers (If Equipped) ...................................................................................................30
2.5-11a Before Operation ......................................................................................................... 30
2.5-11b Extending the Outriggers ............................................................................................. 30
2.5-11c Retracting the Outriggers ............................................................................................ 31
2.5-12 Electrical Inverter (If Equipped) ........................................................................................................ 31
2.5-13 Shutdown Procedure ........................................................................................................................ 31
2.6 Loading/Unloading ...........................................................................................................................................32
2.6-1 Lifting ................................................................................................................................................ 32
2.6-2 Driving ...............................................................................................................................................33
2.7 Winching and Towing Procedure ....................................................................................................................... 34
2.7-1 To Release the Parking Brake Manually ............................................................................................34
2.8 Emergency Lowering Procedure ......................................................................................................................35
2.9 Battery Maintenance ......................................................................................................................................... 36
2.9-1 Battery Service Procedures ...............................................................................................................36
2.9-2 Battery Charging Operation .............................................................................................................. 36
2.10 Tables ..............................................................................................................................................................40
List of Tables
Table 2-1. Specifications and Features ...................................................................................................................... 40
Table 2-2. Owner’s Annual Inspection Record ...........................................................................................................41
Table 2-3. Maximum Platform Capacities (Evenly Distributed) ................................................................................... 42
Table 2-4. Maintenance and Inspection Schedule .....................................................................................................43
Table 2-5. EC Declaration of Conformity ................................................................................................................... 44

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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 SJ800 - E Series Rough Terrain (Models 8831E & 8841E) 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 1.13.
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
: 44 1691-676-235
: 44 1691-676-239
Include the model and serial number for each applicable machine.
Scope of this Manual
a. This manual applies to the CE version of the SJ-800E series aerial platform models listed on
Table 2-1.
- Equipment identified with “CE” meets the requirements for the European countries, i.e., Machinery
Directive 98/37/EC and EMC Directive 89/336/EEC and the corresponding EN standards.
b. Operators are required to conform to national, state or territorial/provincial and local health and
safety regulations applicable to the operation of this aerial platform.

SKYJACK, Page 7
April 2006
Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
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 43-1/2"
(1100mm) hinged guardrails with 6" (152mm) toe boards
and mid-rails. The platform can be entered from either
side through a spring-returned gate . All models can be
equipped with a front or both front and rear 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 inside the door of
the hydraulic cabinet located at the base. 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
The lifting mechanism is constructed of formed steel or tube
sections making up a scissor-type assembly. The scissor
assembly is raised and lowered by single-acting hydraulic lift
cylinders with holding valves. A single-section pump,
driven by an electric traction motor through a gear box,
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 component side cabinets.
• One cabinet contains the hydraulic components,
up/down controls and electrical components.
• The other cabinet contains the hydraulic tank and
the battery chargers.
• The front axle has two wheels, steerable by a
hydraulic cylinder and is non-driven or drive shaft/
gear box driven (4WD option).
• The rear axle is drive shaft/gear box driven and
has a spring-applied hydraulically-released disc
parking brake.
• The drive system is designed to automatically
adjust to rough terrain or steep inclines.
• A slide-out drawer at the front of the base, supports
a battery compartment which provides power to
the electrical system.

April 2006
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Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
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 Load Sensing System
The load sensing system is a safety device that prevents
any normal movement of the aerial platform from a
stationary working condition after the rated load is
reached and exceeded.
1.10 Lowering Warning System
A lowering warning system automatically stops the low-
ering function before reaching the fully retracted posi-
tion and sounds the alarm.
1.11 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
Use this information for proper operation and mainte-
nance and when ordering service parts.

SKYJACK, Page 9
April 2006
Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
1.12 Major Components
SKYJACK SJ800-E Series Aerial Platform
Operator’s
Control Box
Main
Platform
Battery
Tray
Battery
Charger/
HydraulicTank
Side
Cabinet Base
Lifting
Mechanism
Entry
Gate
Extension
Platform
(optional)
Scissor
Guards

April 2006
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Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
1.13 Standard and Optional Features
SJ88xx E-Series Rough Terrain – SPECIFICATIONS – CE
S T A N D A R D E Q U I P M E N T
Operator horn
Joystick control
Diamond pattern, all steel platform deck construction
Access ladders and gates at both sides of platform
Flashing light and descent alarm
Hourmeter
Self-centering scissors design
Lockable cabinets with swing-out door
Color-coded, numbered wiring system
Tie down points
Hinged railing system with 15.24 cm toe boards
Battery compartment mounted on slide-out tray
Type #6 air filled tires (Models 8831E & 8841E)
AC outlet on platform
Scissor guards
Disc brake system on rear axle
Tilt alarm with lift/drive cut out
Base control station
D-rings (lanyard attachment points)
O P T I O N A L E Q U I P M E N T
Movement alarm
Front and/or rear mounted 1.2 m powered extension platform
1.2 m slide out extension platform
4-wheel drive package
Rotating amber beacon
Type #6F foam filled tires
Type #7F foam filled tires
Type #7 air filled tires
Independently operated hydraulic outriggers
EE rating
1500 watt electrical inverter
60426AB-CE

SKYJACK, Page 11
April 2006
Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
1.14 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.
1.15 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
CE Guidance Note
“Avoidance of danger from Overhead Lines”
Adhere strictly to the governmental rulings and regulations applicable in your country.
FAILURE TO AVOID THIS HAZARD WILL RESULT IN DEATH OR SERIOUS INJURY!
60023AC-CE

April 2006
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Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
•DO NOT increase the lateral sur-
face area of the platform. In-
creasing the area exposed to the
wind will decrease machine sta-
bility.
•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 sur-
faces that may affect the stabil-
ity of the aerial platform.
•If operation in areas with holes
or drop-offs is absolutely neces-
sary,elevated driving shall not be
allowed. Position the aerial plat-
form horizontally only with the plat-
form fully lowered. After ensuring
that all 4 wheels or outriggers (if
equipped) have contact with level
firm surface, the aerial platform can
be elevated. After elevation, 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.
•ENSURE that the battery connector is properly
disconnected when leaving the machine unattended.
Remove the key to prevent unauthorized use of the
aerial platform.
•WEAR all the protective clothing and personal safety
devices issued to you or called for by job condi-
tions.
•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.
1.16 Safety Precautions
Know and understand the safety precautions before going on to next section.

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April 2006
Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
1.16 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
guardrail.
•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
platform. 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
assembly. It is prohibited.
•BE AWARE of overhead obstruc-
tions or other possible hazards
around the aerial platform when
driving or lifting.

April 2006
SKYJACK, Page 14
Section 1 - About Your Aerial Platform
SJ800 - E Series
Battery Powered
1.16 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 that 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.

SKYJACK, Page 15
April 2006
General
Section 2 - Operation
SJ800 - E Series
Battery Powered
2
2. Operation
This section provides the necessary information needed
to operate the aerial platform. It covers the basic and
optional components of the machines, operation and
start procedures, winching and towing procedure, load-
ing/unloading, tires specifications, labels, platform ca-
pacities and tables related to the proper maintenance
of this machine. It is important that the user reads and
understands this section before operating the aerial
platform.
2.1 General
In order for this aerial platform to be in good working
condition, it is important that the operator meets the
necessary qualifications and follow 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 2-4, 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 2-4 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 2-4 for recommended mainte-
nance and inspection areas and intervals. A record of
annual inspection is kept on a label located on the scis-
sor assembly. Refer to Table 2-2 in this manual.

April 2006
SKYJACK, Page 16
Section 2 - Operation Component Identification
SJ800 - E Series
Battery Powered
2.2 Component Identification
The following descriptions are for identification,
explanation and locating purposes only.
2.2-1 Battery Connectors
This connector is located at the front of the pull-out
battery tray.
Figure 2-1. Battery Connectors
1. Battery Connectors - These connectors, when
separated, disconnect the batteries and all power
to the platform and base controls. In the event of
an emergency or when performing maintenance,
grasp the handle and pull the connectors apart.
2. Battery Lockout - This lockout is provided to
prevent unauthorized use and for maintenance
purposes.
12
2.2-2 Electrical Panel
This panel is located in the hydraulic/electric cabinet. It
contains the following controls:
Figure 2-2. Electrical Panel
1. Hourmeter - This gauge activates when a function
is selected. It records the accumulated time of
operation of the aerial platform.
2. Circuit Breaker Resets - In the event of a power
overload or positive circuit grounding, the circuit
breaker will pop out. Make the necessary
corrections, then depress the push-button to reset.
2.2-3 Base Controls
These controls are located outside of the rear of the
hydraulic/electric cabinet. It contains the following
controls:
Figure 2-3. 1500W AC Inverter
1. Platform UP/DOWN Toggle Switch - This toggle
type switch raises or lowers the platform to a
desired height.
2. Emergency Stop Button - This red “mushroom-
head” shaped button switch is designed to
disengage power to both the platform and base
controls.
1
2
1
2

SKYJACK, Page 17
April 2006
Section 2 - OperationComponent Identification
SJ800 - E Series
Battery Powered
2.2-4. Operator’s Control Box
This metal control station is mounted at the right front of
the platform. It contains the following controls:
Figure 2-4. Operator’s Control Box
1.LIFT/DRIVE Controller - A one-hand toggle-type
lever controls the lift/drive and steer motions.
Internal springs return it to neutral when stick is
released.
2. LIFT/DRIVE Enable Trigger Switch - This
momentary switch energizes the LIFT/DRIVE
proportional controller. It must be held depressed
continuously while engaging either the drive or
lift functions.
3. Warning Alarm Indicator Light - This red-colored
light indicates overload status. When the light
flashes, it signals an overload function
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.
6. LIFT/OFF/DRIVE Select Toggle Switch -
Selecting “LIFT” position allows the lift enable
push button function to operate. Selecting “OFF”
position disconnects power to the control box.
Selecting “DRIVE” position allows the drive/steer
functions.
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.
2
1
3
6
7
4
5

April 2006
SKYJACK, Page 18
Section 2 - Operation Component Identification
SJ800 - E Series
Battery Powered
2.2-5 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.
2.2-6 AC Outlet on Platform
AC Outlet on Platform - This outlet is a source of 110V/
220V power on the platform.
Figure 2-5. AC Outlet on Platform
2.2-7 Battery Charger
This machine is battery-powered and is equipped with
two (2) battery chargers.
Battery Charger - The charger is located inside the hy-
draulic tank/battery charger cabinet. Refer to Section
2.9-2 for details on charging operation.
Figure 2-6. Battery Charger

SKYJACK, Page 19
April 2006
Section 2 - OperationComponent Identification
SJ800 - E Series
Battery Powered
2.2-10 Overload Warning System
The aerial platform is equipped with a load sensing
system (refer to Table 2-3 for maximum platform ca-
pacities).
When 90% of the rated load is reached:
The red power indicator light of the operator’s
control box flashes.
When the rated load is reached:
An audible alarm sounds for approximately 2
seconds, 5 times per minute.
When the rated load is exceeded:
The flashing light and audible alarm continue and
all electrically controlled machine movement
functions stop. To resume normal operation,
remove the overload from the platform.
If the machine during the operation comes in
contact with an overhead obstruction:
The platform could become overloaded and all
functions would stop. Release of the platform from
this situation can only be effected by use of the
emergency lowering system. Refer to Section 2.8.
Note
After reaching full extension and upon lowering, the
machine could stop and take an overload reading.
Return the proportional controller to the neutral
position, and release the enable trigger switch. If the
machine is overloaded, the flashing light and audible
alarm continue and all electrically controlled machine
movement functions stop. To resume normal
operation, remove the overload from the platform.
2.2-8 Lanyard Attachment Ring
Use this ring as an attachment point for safety belt/
harness tethers. DO NOT attach belts/harnesses to any
other point on the platform. DO NOT use this ring to lift,
anchor, secure or support the platform or any other
apparatus or material.
Figure 2-7. 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!
Used as such could result in death or serious injury.
2.2-9 Parking Brake System
The brake manifold is mounted in the hydraulic/electric
cabinet located on the left side of the machine. The
brake MUST be manually disengaged before pushing,
towing or winching.
Refer to Section 2.7-1 for procedure on how to release the
parking brake manually. It contains the following controls:
Figure 2-8. Brake Manifold
1. Brake Valve Plunger
2. Parking Brake Release Hand Pump
2
1

April 2006
SKYJACK, Page 20
Section 2 - Operation Component Identification
SJ800 - E Series
Battery Powered
2.2-11 Folding Guardrail System
When folded down, the folding guarrail system reduces
the retracted height of the aerial platform for
transporting only.
Figure 2-9. Fold-Down 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 2-9).
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
2.2-12 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 2-10. Emergency Lowering System
1. Emergency Lowering Valve - Located ouside the
hydraulic/electric cabinet next to the base controls.
2. Holding Valve Manual Override Knob - Located
on the holding valve at the bottom of each lift
cylinder.
3. Access Rod - Located at the scissor guard at
the back of the machine.
2
1
3
DETENT BALL
CLEAR OF SIDE
OF PIVOT BRACKET
Correct Position of Locking Pin
1