Skyjack SJ7127 RT User manual

.
ROUGH TERRAIN SCISSORS
MODELS SJ7127 RT SJ7135 RT SJ8831 RT SJ8841 RT SJ9250 RT
159166AC-A August 2014
OPERATING MANUAL (ANSI/CSA)

This manual is based on Serial Numbers:
SJRT 71XX 34 002 668 - 34 002 965
SJRT 8831 36 000 287 - 36 000 296
SJRT 8841 40 001 211 - 40 001 405
SJRT 9250 50 001 121 - 50 001 273
Please refer to the website (www.skyjack.com) for older Serial Numbers.
Parts (North America)
Toll Free: 1-800-965-4626
Toll Free Fax: [phone]
E-mail: [email protected]
Skyjack Australia Pty Ltd.
4 Coates Place
Wetherill Park
New South Wales 2164
Australia
Tel: [phone]
Fax: [phone]
Skyjack Brasil
Indaiatuba, SP, Brasil 13347-653
Tel: [phone]
Alameda Júpiter, 710
Loteamento American Park Empresarial
Skyjack Service Center
3451 Swenson Ave. St. Charles,
Phone: [phone]
Toll Free: 1-800-275-9522
Fax: [phone]
Email: [email protected]om
Illinois, 60174 USA
Parts & Service (Europe)
Unit 1 Maes Y Clawdd
Oswestry, Shropshire SY10 8NN UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Maesbury Road Industrial Estate

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December 2007 Page 3
The Safety Alert Symbol identifies important
safety messages on aerial platform, 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.
This Safety Alert Symbol means attention!
Become alert! Your safety is involved.
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 potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to alert against
unsafe practices.
IMPORTANT
IMPORTANT indicates a procedure essential for safe operation and which,
if not followed, may result in a malfunction or damage to the aerial platform.

Page 4 December 2007
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Table of Contents
Section 1 - About Your Aerial Platform ................................................................................................. 5
Read and Heed .....................................................................................................................................................5
Safety Rules...........................................................................................................................................................6
Section 2 - Familiarization ................................................................................................................... 13
2.1 Familiarization of SJRT Mid Size and Full Size Series.....................................................................13
2.2 Component Identification.................................................................................................................14
2.3 Visual & Daily Maintenance Inspections..........................................................................................18
2.4 Function Tests ..................................................................................................................................28
2.5 Winching and Towing Procedure.....................................................................................................38
2.6 Emergency Lowering Procedures ...................................................................................................39
Section 3 - Operation ........................................................................................................................... 41
3.1 General .............................................................................................................................................41
3.2 Major Components...........................................................................................................................42
3.3 Major Assemblies .............................................................................................................................43
3.4 Serial Number Nameplate................................................................................................................43
3.5 Component Identification.................................................................................................................44
3.6 Component Identification (Special Options)....................................................................................46
3.7 Operator’s Responsibility.................................................................................................................47
3.8 Start Operation .................................................................................................................................49
3.9 Refueling Procedures.......................................................................................................................56
3.10 Loading/Unloading...........................................................................................................................58
3.11 Guardrail Folding Procedure............................................................................................................60
3.12 Maintenance Support Procedure.....................................................................................................62
Section 4 - Tables.................................................................................................................................. 63
Table 4.1 Standard and Optional Features......................................................................................................63
Table 4.2 Owner’s Annual Inspection Record .................................................................................................64
Table 4.3 Specifications and Features.............................................................................................................65
Table 4.4 Maximum Platform Capacities (Evenly Distributed) ........................................................................66
Table 4.5 Maximum Platform Capacities (Evenly Distributed with Optional #7 Tires) ...................................67
Table 4.6 Floor Loading Pressure....................................................................................................................68
Table 4.7 Tire Specifications ............................................................................................................................69
Table 4.8 Maintenance and Inspection Schedule ...........................................................................................71
Table 4.9 Operator’s Checklist.........................................................................................................................72
Section 5 - Labels.................................................................................................................................. 73

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December 2007 Page 5
Section 1 - About Your Aerial Platform Read and Heed
SKYJACK is continuously improving and expanding product features on its equipment, therefore, specifications
and dimensions are subject to change without notice.
Aerial Platform and Mobile Elevating Work Platform Definition
A mobile device that has a positionable platform supported from ground level by a structure.
Purpose of Equipment
The SKYJACK Rough Terrain’s mid and full size 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. Work platform elevation and elevated driving
must only be done on a firm level surface. It 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.
Service Policy and Warranty
SKYJACK warrants each new SJRT Series aerial platform to be free of defective parts and workmanship for the first
24 months. Any defective part will be replaced or repaired by your local SKYJACK dealer at no charge for parts or
labor. Contact the SKYJACK Service Department for warranty statement extensions or exclusions.
Optional Accessories
The SKYJACK aerial platform is designed to accept a variety of optional accessories. These are listed under
“Standard and Optional Features” in Table 4.1. Operating instructions for these options (if equipped) are located
in Section 3 of this manual.
For non-standard components or systems, contact the SKYJACK Service Department at
(: 800 275-9522
7: 630 262-0006
Include the model and serial number for each applicable aerial platform.
Scope of this Manual
a. This manual applies to the ANSI/SIA, CSA version of the Mid Size and Full Size Rough Terrain aerial platform
models listed on Table 4.1.
- Equipment identified with “ANSI” meets the ANSI SIA-A92.6-2006 standard.
- Equipment identified with “CSA” meets the CSA B354.2-01 standard.
b. CSA (Canada)
Operators are required to conform to national, territorial/provincial 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 their responsibilities
in the manual of responsibilities before they use or operate this aerial platform.
1
1
1
1
Section 1 - About Your Aerial Platform
Read and Heed

Page 6 December 2007
Rough Terrain Scissors
Safety Rules Section 1 - About Your Aerial Platform
WARNING
Failure to comply with your required responsibilities in the use and operation of the aerial platform
could result in death or serious injury!
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.
Safety Rules

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December 2007 Page 7
Section 1 - About Your Aerial Platform Safety Rules
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.
Per ANSI A92.6-2006 8.10(7)
“The operator shall perform only that work for which he or she is qualified, in compliance with all applicable safety
related work practices intended to prevent electric shock covered by the Code of Federal Regulations (CFR)
1910.333. The operator’s level of competence shall be established only by persons qualified to do so. Operators
shall maintain the appropriate minimum approach distance (MAD) from energized power lines and parts covered
by CFR 1910.333 (c).”
Unqualified persons must maintain a minimum approach distance of 10 feet from any energized power line up to
50 kV. Energized power lines over 50 kV require a greater minimum approach distance to be maintained. Refer to
CFR 1910.333.
As per CSA B354.2-01
“The operator shall maintain the minimum safe approach distance (MSAD) from energized conductors at all times
in accordance with the authority having jurisdiction.”
As per AS 2550.1-2002
Elevating Work Platforms must remain 6.4 m from electrical distribution lines up to 133 kV and 8 m from transmission
lines greater than 133 kV. State regulations may take precedence over these approach distances.
DO NOT USE THE AERIAL PLATFORM AS A GROUND FOR WELDING.
DO NOT OPERATE THE AERIAL PLATFORM DURING LIGHTNING OR STORMS.
DO NOT OPERATE THE AERIAL PLATFORM NEAR POWER LINES. MAINTAIN A MININUM SAFE
APPROACH DISTANCE (MSAD) FROM ENERGIZED POWER LINES.
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
60023AD-ANSI
DANGER
FAILURE TO AVOID THIS HAZARD WILL RESULT IN DEATH OR SERIOUS INJURY!
Avoid Power Lines
Minimum Safe Approach Distance
ANSI/SIA A92.6-2006 & CSA B354.2-01 Requirements

Page 8 December 2007
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Safety Rules Section 1 - About Your Aerial Platform
Safety Precautions
Know and understand the safety precautions before going on to next section.
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 aerial platform
and jobsite.
• TURN main power disconnect switch “ ” off
when leaving the aerial platform 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
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 MEWP or
operate elevated in windy or
gusty conditions that exceed
the limits specified in Section 4,
Table 4.4.
• DO NOT increase the lateral
surface area of the platform.
Increasing the area exposed
to the wind will decrease
aerial platform stability. Avoid
tenting.
• DO NOT drive elevated on a
soft or uneven surface.
• DO NOT 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 or surfaces that may
affect the stability of the aerial
platform.
• IF OPERATION IN AREAS
WITH HOLES OR DROP-
OFFS IS ABSOLUTELY
NECESSARY, elevated driving
shall not be allowed. Position
the aerial platform horizontally
only with the platform fully-
lowered. After ensuring that
all 4 wheels or outriggers (if
equipped) have contact with
a firm, level surface, the aerial
platform can be elevated. After
elevation, the drive function
must not be activated.
• DO NOT elevate or drive
elevated on a slope. Elevated
driving must be done on a
firm, level surface.
• DONOT ascend or descend
a grade when elevated.
When fully-lowered, ascend
or descend grades up to
maximum rated inclines listed
in Table 4-3.

Rough Terrain Scissors
December 2007 Page 9
Section 1 - About Your Aerial Platform Safety Rules
Safety Precautions (Continued)
Know and understand the safety precautions before going on to next section.
• 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 increase
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.
• AVOID overhead obstructions.
Be aware of overhead
obstructions or other possible
hazards around aerial platform
when lifting or driving.
• AVOID crushing hazards. Be
aware of crushing hazards
when lifting or driving. Keep
all body parts inside the aerial
platform.
• DO NOT raise the aerial
platform while the aerial
platform is on a truck, fork lift
or other device or vehicle.
• DO NOT lower the platform
unless 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.
• DONOTuse with improperly
inflated/damaged tires or
wheels. Refer to Section 2:
Wheel/Tire Assembly.
• ENSURE ALL tires are in good condition and lug
nuts are properly tightened.
• DO NOT alter or disable
limit switches or other safety
devices.

Page 10 December 2007
Rough Terrain Scissors
Safety Rules Section 1 - About Your Aerial Platform
Safety Precautions (Continued)
Know and understand the safety precautions before going on to next section.
• DONOTuse the aerial platform
without guardrails, locking pins
and the entry gate(s) in place.
• DO NOT use under influence
of alcohol or drugs.
• STUNT driving and horseplay are prohibited.
• DO NOT exceed the rated
capacity of the aerial platform.
• DO NOT distribute load
unevenly.
• DO NOT operate if aerial
platform is not working properly
or if any parts are damaged or
worn.
• DONOT leave aerial platform
unattended with key in key
switch.
• 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
another object to steady the platform.
• DO NOT place materials on the guardrails
or materials that exceed the confines of the
guardrails unless approved by Skyjack.

Rough Terrain Scissors
December 2007 Page 11
Section 1 - About Your Aerial Platform Safety Rules
Fall Protection
As per the ANSI A92.6-2006 standard, “The
guardrail system of the aerial platform provides
fall protection. If occupant(s) of the platform are
required to wear personal fall protection equipment
(PFPE), occupants shall comply with instructions
provided by the aerial platform manufacturer
(remanufacturer) regarding anchorage(s).”
If additional fall protection is required, by an
employer or the authority having jurisdiction,
Skyjack recommends the use of a fall restraint
system to keep an occupant within the confines
of the platform, and thus not expose the occupant
to any fall hazard requiring a fall arrest.
All personal fall protection equipment must
comply with applicable governmental regulations
and must be inspected and used in accordance
with the manufacturer’s recommendations.
All personal fall protection equipment must be
attached only to approved anchorage points
within the platform of the aerial platform.
WARNING
Entering and exiting the aerial platform
should only be done using the three
points of contact.
• Use only equipped access openings.
• 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 aerial platform 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.
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.
• has been tagged or blocked out for non-use
or repair.
Failure to avoid these hazards could
result in death or serious injury.
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.
Safety Precautions (Continued)
Know and understand the safety precautions before going on to next section.

Page 12 December 2007
Rough Terrain Scissors
Notes

Rough Terrain Scissors
December 2007 Page 13
Section 2- Familiarization SJRT Series
WARNING
Aerial Platform Familiarization should be given only to individuals who are QUALIFIED And
TRAINED to operate an aerial platform.
Do not operate this aerial platform without proper authorization and training. Failure to avoid
this hazard could result in death or serious injury.
It is the responsibility of the operator to read, completely understand and follow all
instructions and warnings contained in this operating manual and on the aerial platform.
2.1 Familiarization of SJRT Mid Size and Full Size Series
FAMILIARIZATIONFAMILIARIZATION
1
2
1
2
1
2
Section 2 - Familiarization
Main Power
Disconnect
Manual
Box
Base
Control
Console
Platform Control
Console
Holding Valve
Manual Override
Knob
Engine Control
Console
Power Extension
Control Console
Outrigger
Control Console
Propane Tank
Brake Auto Reset
Valve Plunger
Brake Lever
Emergency
Lowering
Valve (71XX,
88XX, 9250)
Emergency
Lowering
Pushbutton
(9250 ONLY)
Brake Pump

Page 14 December 2007
Rough Terrain Scissors
Control Functions Section 2 - Familiarization
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
2.2 Component Identification
The following descriptions are for identification,
explanation and locating purposes only.
2.2-1 Main Power Disconnect Switch
This switch is located at the side of the hydraulic/
electrical compartment.
1
Figure 2-1. Main Power Disconnect Switch
1. 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. Turn switch off when
transporting aerial platform.
2.2-2 Motion Alarm
The alarm produces an audible sound when any control
function is selected. On aerial platforms with certain
options, a flashing amber light will accompany this
alarm.
2.2-3 Tilt Alarm
The aerial platform is equipped with a device which
senses when the aerial platform 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
the alarm sounds, lower the platform completely, then
reposition aerial platform so that it is level before raising
the platform.
NOTE
If the tilt alarm sounds and the platform does
not, or only partially raises, immediately
lower the platform completely and ensure
that the aerial platform is on a firm level
surface.
2.2-4 Base Control Console
This control console is located at the rear of the
hydraulic/electrical compartment. It contains the
following controls:
21
3
Figure 2-2. Base Control Console
1. Lower/Neutral/Raise Switch - This switch controls
“ ” raising or “ ” lowering of platform.
2. Enable Switch - When selected and held, this
“” switch allows the lift functions to
operate.
3. Emergency Stop Button - This button “ ”,
when depressed, disconnects power to the control
circuit.
FAMILIARIZATIONFAMILIARIZATION

Rough Terrain Scissors
December 2007 Page 15
Section 2 - Familiarization Control Functions
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
2.2-5 Brake System
The brake system is located on the main manifold in
the hydraulic/electrical compartment. The brake must
be manually disengaged before pushing, winching or
towing. Refer to Section 2.5 for procedure on how to
release the brake manually. The system contains the
following controls:
2
1
Disc Brake
Figure 2-3. Brake System
1. Brake Lever
2. Brake Auto Reset Valve Plunger
3. Brake Pump
2.2-6 Propane Cylinder (If Equipped)
The propane cylinder is located on the base of the aerial
platform. It has the following control:
11
Figure 2-4. Propane Cylinder
1. Cylinder Main Valve - Turn this valve clockwise
to shut off the fuel supply; counterclockwise to
open it.
2.2-7 Emergency Lowering System
This emergency lowering system allows platform
lowering in the event of an emergency or an electrical
system failure. Refer to Section 2.6 for the emergency
lowering procedures. The system contains the following
controls:
Models 71xx & 88xx
1
3
2
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. Emergency Lowering Valve - Located at the rear
of the hydraulic/electrical compartment.
3. Emergency Lowering Access Rod - Located at
the side of the base.
Model 9250
This emergency lowering system is located on the
hydraulic tank and is accessed through a hole in the
hydraulic/electrical compartment door.
2
1
Figure 2-6. Emergency Lowering System
1. Emergency Lowering Pushbutton
2. Emergency Lowering Valve
FAMILIARIZATIONFAMILIARIZATION
3

Page 16 December 2007
Rough Terrain Scissors
Control Functions Section 2 - Familiarization
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
2.2-8 Engine Control Console
This control console is attached to the engine tray. It
contains the following controls:
1
3
2
Figure 2-7. Engine Control Console - Dual Fuel
1
2
4
Figure 2-8. Engine Control Console - Dual Fuel
1
5
6
Figure 2-9. Engine Control Console - Diesel Engine
1. Engine Off/On/Start Switch - This is a three-
position switch. When in “ ” on position, it
energizes engine circuit. When in “ ” start
position, it starts the engine (switch will return
to on position when released). When in “ ” off
position, it turns engine off.
2. Fuel Select Switch - Used to switch between
“” liquid propane gas and “ ” gasoline.
3. Engine Warning Light - When engine switch is set
to on position, the amber-colored light will flash
continuously to indicate normal operation.
4. Engine Choke Switch - This “ ” momentary
toggle switch sets the choke for starting a cold
gasoline/propane engine. The choke remains fully
engaged only while the switch is selected. Choke
returns to normal position as soon as switch is
released.
5. Glow Plug Switch - This “ ” momentary
toggle switch energizes the glow plugs to aid in
starting a cold diesel engine. Glow plugs are only
active while switch is activated.
6. Glow Plug Indicator Light - This red lamp
illuminates until the glow plugs have completed
the timed heating cycle. When the lamp goes out,
the engine is ready to be started.
FAMILIARIZATIONFAMILIARIZATION

Rough Terrain Scissors
December 2007 Page 17
Section 2 - Familiarization Control Functions
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
2.2-9 Platform Control Console
This removable control console is mounted at the
right front of the platform. It contains the following
controls:
2
1
3
4
56
7
8
10
9
11
12
13
Figure 2-10. Platform Control Console
1. Torque Switch - This switch, when in
“” high torque position, cuts out high range
and 3rd speed to provide maximum torque when
climbing grades and on rough terrain. When in
“” low torque position, all three speeds are
available.
2. Horn Pushbutton - This “ ” pushbutton sounds
an automotive-type horn.
3. Engine Choke Pushbutton (Dual Fuel) - This
pushbutton switch sets the choke for starting a
cold gasoline/propane engine.
Glow Plug Pushbutton (Diesel) - This pushbutton
energizes the “ ” glow plugs to aid in starting a
cold diesel engine.
4. Engine Start Pushbutton - This “ ” pushbutton
energizes the engine starter motor.
NOTE
The engine start pushbutton is interlocked
with the oil pressure switch. If engine stalls
or does not start immediately, this button
will not work for a few seconds while oil
pressure bleeds off.
5. Lift Enable Pushbutton - When depressed and
held, this “ ” pushbutton allows the lift
functions to operate.
6. Emergency Stop Button -This button “ ”,
when depressed, disconnects power to control
circuit and shuts engine off. The red colored light
indicates upper control availability. When the light
is continuously illuminated, upper controls are
available.
7. Off/Lift/Drive Key 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.
8. Raise/Off/Lower Switch - This switch controls
raising or lowering of the platform.
9. Operation Light - The red colored light indicates
upper control availability. When the light is
continuously illuminated, upper controls are
available.
10. Low/High Speed Range Switch - This switch
selects “ ” low speed range (high torque) or
“” high speed range (low torque).
11. Low/High Throttle Switch - This rotary switch
allows selection between “ ” low and “ ”
high engine throttle speeds.
12. Drive/Steer Controller - This one-hand lever
controls drive speed and steer motion. Internal
springs return it to neutral when controller is
released. The rocker switch on top of controller
handle controls steering function.
13. Drive/Steer Enable Trigger Switch - This
momentary “ ” switch energizes the controller.
It must be held depressed continuously while
engaging either drive or steer functions.
FAMILIARIZATIONFAMILIARIZATION

Page 18 December 2007
Rough Terrain Scissors
Visual & Maintenance Inspection Section 2 - Familiarization
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
2.3 Visual & Daily Maintenance
Inspections
Begin the visual and daily maintenance inspections
by checking each item in sequence for the conditions
listed in this section.
WARNING
To avoid injury, do not operate an aerial
platform until all malfunctions have been
corrected.
WARNING
To avoid possible injury, ensure aerial
platform power is off during your visual
and daily maintenance inspections.
CAUTION
Ensure aerial platform is on a firm, level
surface.
NOTE
While doing visual and daily inspections
in different areas, be aware to also inspect
limit switches, electrical and hydraulic
components.
2.3-1 Labels
Refer to Section 5 - Labels in this manual and determine
that all labels are in place and are legible.
2.3-2 Electrical
Maintaining the electrical components is essential
to good performance and service life of the aerial
platform.
Inspect the following areas for chafed, corroded and
loose wires:
• base to platform cables and wiring harness
• engine compartment electrical panel
• engine wiring harness
• hydraulic/electrical wiring harnesses
2.3-3 Limit Switches
Ensure limit switches are properly secured with no signs
of visible damage and movement is not obstructed.
2.3-4 Hydraulic
Maintaining the hydraulic components is essential
to good performance and service life of the aerial
platform.
Perform a visual inspection around the following
areas:
• hydraulic tank filter, fittings, hoses, emergency
power unit (if equipped) and base surfaces
• engine compartment fittings, hoses, main
pump, and filter
• all hydraulic cylinders
• all hydraulic manifolds
• the underside of the base
• ground area under the aerial platform
• outriggers
Model 71xx Model 88xx
Outrigger
Platform
Assembly
Limit Switch
Platform Control
Console
Base
Scissor
Assembly
Base
Electrical/Hydraulic
Compartment
Ladder Electrical/Hydraulic
Compartment
Ladder
Limit Switch
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Rough Terrain Scissors
December 2007 Page 19
Section 2 - Familiarization Visual & Maintenance Inspection
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
2.3-5 Emergency Lowering Access Rod (All
models except 9250)
- Ensure rod is properly secured and there
is no visible damage.
2.3-6 Hydraulic/Electrical Compartment
- Ensure all compartment latches are
secure and in proper working order.
• Main Power Disconnect Switch
- Turn main power disconnect switch to “
” off position.
- Ensure all cables are secure and switch
is in proper working condition.
• Base Control Switches
- Ensure there are no signs of visible
damage and all switches are in their
neutral positions.
• Battery
Proper battery condition is essential to
good performance and operational safety.
Improper fluid levels or damaged cables and
connections can result in component damage
and hazardous conditions.
WARNING
Explosion hazard. Keep flames and
sparks away. Do not smoke near
batteries.
WARNING
Battery acid is extremely corrosive - Wear
proper eye and facial protection as well as
appropriate protective clothing. If contact
occurs, immediately flush with cold water
and seek medical attention.
1. Check battery case for damage.
2. Clean battery terminals and cable ends
thoroughly with a terminal cleaning tool or
wire brush.
3. Ensure all battery connections are tight.
4. If applicable, check battery fluid level. If
plates are not covered by at least 1/2”
(13 mm) of solution, add distilled or
demineralized water.
5. Replace battery if damaged or incapable of
holding a lasting charge.
WARNING
Use original or manufacturer-approved
parts and components for the aerial
platform.
Typical Model 71xx shown
Main Power
Disconnect Switch
Electrical Panel
Motion Control Manifold
Base Control
Switches
Load/Tilt
Sensor
Cushion Cylinder
Main Manifold
Brake Manifold
Emergency Lowering
Access Rod
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Page 20 December 2007
Rough Terrain Scissors
Visual & Maintenance Inspection Section 2 - Familiarization
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the aerial platform.
• Manifolds
- Ensure all fittings and hoses are properly
tightened and there is no evidence of
hydraulic leakage.
- Ensure there are no loose wires or
missing fasteners.
- Electrical Panel
- Ensure panel is properly secured and
there is no visible damage.
- Ensure there are no loose wires or
missing fasteners.
• Tilt Sensor
- Ensure tilt sensor is properly secured and
there is no visible damage.
• Hydraulic Tank (Model 9250)
- Ensure hydraulic filler cap is secure.
- Ensure tank shows no visible damage
and no evidence of hydraulic leakage.
• Hydraulic Oil
- Ensure platform is fully lowered, and
outriggers retracted, and then visually
inspect the sight gauge located on the
side of the hydraulic oil tank. Check oil
level against label that indicates minimum
and maximum oil levels (Model 9250).
- The hydraulic oil level should be at or
slightly above the top mark of the sight
glass (Models 71xx & 88xx).
Typical Model 71xx shown
Main Power
Disconnect Switch
Electrical Panel
Motion Control Manifold
Base Control
Switches
Load/Tilt
Sensor
Cushion Cylinder
Main Manifold
Brake Manifold
Emergency Lowering
Access Rod
FAMILIARIZATIONFAMILIARIZATION