Skyjack 7127, 7135, 8850, 8831, 8841 Operating Manual

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OPERATING MANUAL

ANSI/CSA

This manual must be kept and stored with the aerial platform at all times.

Rough Terrain Series

Engine Powered

Operating Manual - ANSI/CSA

For Service please call ........................................................................800 275-9522

Skyjack Service Center, 3451 Swenson Ave., St. Charles, IL. 60174, USA .... FAX 630 262-0006

For Parts in North America and Asia please call .................................... 800 965-4626

Skyjack Parts Center, 3451 Swenson Ave., St. Charles, IL. 60174, USA ................ FAX 888 782-4825

For Parts & Service in Europe please call ................................................. 44-1691-676-235

Skyjack Europe, Glovers Meadow, Maesbury Rd., Oswestry, Shropshire, U.K ......FAX 44-1691-676-239

143861AB-A Printed in Canada February 2008

Full Size: 8831, 8841 & 9250

Models:

Mid Size: 7127, 7135, 8243 & 8850

Rough Terrain Series

118945AA 122883AH 129907AB 129922AE 143861AB 143884AA

January 2000 June 2002 August 2003 April 2006 February 2008 February 2008

7027

33188 & Below 33189 & Above

7127 7135 8243 8850

Not Used 340000 to 340268 340269 to 341123 341124 to 343834

34 000 001 to 34 001 506 34 001 507 & Above

8831

37054 & Below 37055 to 37361 37362 to 37451 37452 to 37805

36 000 001 to 36 000 193 36 000 194 & Above

8841

42202 & Below 42203 to 42837 42838 to 43103 43104 to 43822

40 000 001 to 40 000 441 40 000 442 & Above

9250

50771 & Below 50772 to 51094 51095 to 51388 51389 to 51934

50 000 001 to 50 000 512 50 000 513 & Above

60101AL-ANSI-R

MANUAL

PART NUMBER

USE THE SERIAL NUMBER OF YOUR MACHINE TO DETERMINE THE CORRECT OPERATING MANUAL TO USE

Mid Size

RTs

M O D

E L

Release Date

Full Size

RTs

Not Used

SKYJACK, Page 2

Mid Size: 7127, 7135, 8243 & 8850 Full Size: 8831, 8841 & 9250

February 2008

Mid Size & Full Size RT’s

Engine Powered

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.

DANGER indicates an imminently hazardous situation which, if not avoided,

will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided,

could result in death or serious injury.

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

This Safety Alert Symbol means attention!

Become alert! Your safety is involved.

DANGER

WARNING

CAUTION

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.

This document is a translation from English.

In case of discrepancy between the English document and this document, the English

version prevails.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 3

Section 1 - About Your Aerial Platform

Read and Heed

Aerial Platform Definition ..............................................................................................................................................7

Purpose of Equipment .................................................................................................................................................7

Use of Equipment ........................................................................................................................................................7

Manual ..........................................................................................................................................................................7

Operator .......................................................................................................................................................................7

Service Policy and Warranty ........................................................................................................................................7

Optional Accessories ...................................................................................................................................................7

Scope of this Manual ...................................................................................................................................................7

Safety Rules

Operator Safety Reminders .........................................................................................................................................8

Electrocution Hazard ...................................................................................................................................................9

Safety Precautions .....................................................................................................................................................10

Section 2 - Operation

2.1 General ............................................................................................................................................................13

2.1-1 Operator Qualifications .....................................................................................................................13

2.1-2 Operator’s Responsibility for Maintenance ......................................................................................13

2.1-3 Maintenance and Inspection Schedule ............................................................................................13

2.1-4 Owner’s Inspections .........................................................................................................................13

2.2 Major Components ..........................................................................................................................................14

2.3 Major Assemblies ............................................................................................................................................15

2.3-1 Base ..................................................................................................................................................15

2.3-2 Lifting Mechanism .............................................................................................................................15

2.3-3 Platform .............................................................................................................................................15

2.4 Serial Number Nameplate ...............................................................................................................................15

2.5 Component Identification ...............................................................................................................................16

2.5-1 Emergency Main Power Disconnect Switch .....................................................................................16

2.5-2 Motion Alarm .....................................................................................................................................16

2.5-3 Tilt Alarm ...........................................................................................................................................16

2.5-4 Base Control Console .......................................................................................................................16

2.5-5 Engine Control Console ....................................................................................................................17

2.5-6 Brake System ....................................................................................................................................18

2.5-7 Emergency Lowering System ...........................................................................................................18

2.5-8 Propane Cylinder (If Equipped) ........................................................................................................19

2.5-9 Maintenance Support .......................................................................................................................19

2.5-10 Manual Storage Box .........................................................................................................................19

2.5-11 Folding Guardrail System .................................................................................................................20

2.5-12 Lanyard Attachment Anchorage .......................................................................................................20

2.5-13 AC Outlet on Platform .......................................................................................................................20

2.5-14 Platform Control Console .................................................................................................................21

2.6 Component Identification (Special Options) ...................................................................................................22

2.6-1 Generator/Outrigger Control Console (If Equipped) ........................................................................22

2.6-2 Powered Extension Control Console (If Equipped) .........................................................................22

2.6-3 1500W AC Inverter (If Equipped) ......................................................................................................23

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February 2008

Mid Size & Full Size RT’s

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Table of Contents

Section 2 - Operation (Continued)

2.7 Operator’s Responsibility ................................................................................................................................24

2.8 Visual and Daily Maintenance Inspections .....................................................................................................25

2.9 Function Tests..................................................................................................................................................35

2.10 Start Operation ................................................................................................................................................40

2.10-1 To Activate Base Control Console ....................................................................................................40

2.10-2 To Raise or Lower Platform Using Base Console .............................................................................41

2.10-3 To Activate Platform Control Console ...............................................................................................41

2.10-4 To Raise or Lower Platform Using Platform Control Console ..........................................................42

2.10-5 To Drive Forward or Backward .........................................................................................................42

2.10-6 To Steer .............................................................................................................................................43

2.10-7 To Select Drive Torque ......................................................................................................................43

2.10-8 To Extend or Retract Powered Extension Platform (If Equipped) ....................................................43

2.10-9 To Extend or Retract Manual Extension Platform .............................................................................44

2.10-10 Hydraulic Outriggers (If Equipped) ..................................................................................................45

2.10-11 Generator (If Equipped) ....................................................................................................................46

2.10-12 Electrical Inverter (If Equipped) ........................................................................................................46

2.10-13 Shutdown Procedure ........................................................................................................................46

2.11 Refueling Procedure ........................................................................................................................................48

2.11-1 Regular Fuel ......................................................................................................................................48

2.11-2 Propane .............................................................................................................................................49

2.12 Loading/Unloading ..........................................................................................................................................50

2.12-1 Lifting .................................................................................................................................................50

2.12-2 Driving ...............................................................................................................................................51

2.13 Winching and Towing Procedure ....................................................................................................................52

2.13-1 To Release the Brakes Manually .......................................................................................................52

2.14 Guardrail Folding Procedure ...........................................................................................................................54

2.15 Emergency Lowering Procedures ..................................................................................................................56

2.16 Maintenance Support Procedure ....................................................................................................................57

2.17 Tables...............................................................................................................................................................59

2.18 Labels ..............................................................................................................................................................69

List of Tables

Table 2.1 Standard and Optional Features .............................................................................................................59

Table 2.2 Owner’s Annual Inspection Record .........................................................................................................60

Table 2.3 Specifications and Features.....................................................................................................................61

Table 2.4 Maximum Platform Capacities (Evenly Distributed) ...............................................................................62

Table 2.5 Maximum Platform Capacities (Evenly Distributed with Optional #7 Tires) ..........................................63

Table 2.6 Floor Loading Pressure ............................................................................................................................64

Table 2.7 Tire Specifications ....................................................................................................................................66

Table 2.8 Maintenance and Inspection Schedule ...................................................................................................67

Table 2.9 Operator’s Checklist ................................................................................................................................68

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 5

Read and Heed Section 1 - About Your Aerial Platform

SKYJACK 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 Rough Terrain’s mid and full size aerial platform 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. 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 2.1. Operating instructions for these options (if equipped) are located in Section 2 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 2-1.

- 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.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 7

Section 1 - About Your Aerial Platform Safety Rules

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.

SKYJACK, Page 8

February 2008

Mid Size & Full Size RT’s

Engine Powered

Safety Rules Section 1 - About Your Aerial Platform

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

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.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 9

Section 1 - About Your Aerial Platform Safety Rules







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/provincial and local

rules which apply to your aerial platform and jobsite.

• TURN the emergency 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 aerial platform.

• AVOID entanglement with

ropes, cords or hoses.

• DO NOT increase the lateral

surface area of the platform. Increasing the area exposed to the wind will decrease aerial platform 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 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 level firm surface, the aerial platform can be elevated. After elevation, the drive function must not be activated.

• AVOID falling. Stay within the

boundaries of the guardrails.

• DO NOT raise the aerial

platform in windy or gusty conditions.

SKYJACK, Page 10

• Elevated driving must

• DO NOT ascend or descend

February 2008

only be done on a firm level surface.

a grade when elevated. When fully lowered, ascending or descending, only grades up to rated maximum listed in

Table 2.3 are permissible.

Mid Size & Full Size RT’s

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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 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 raise the platform

while the aerial platform 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

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.

• DO NOT sit, stand or climb on

the guardrails. It is prohibited.

• BE AWARE of blind spots when operating the

• DO NOT climb on scissor arm

assembly. It is prohibited.

• BE AWARE of overhead

obstructions or other possible hazards around the aerial platform when driving or lifting.

Mid Size & Full Size RT’s Engine Powered February 2008

• STUNT driving and horseplay are prohibited.

• ENSURE ALL tires are in good condition and lug

• DO NOT alter or disable limit switches or other

• DO NOT use the aerial platform without

aerial platform.

nuts are properly tightened.

safety devices.

guardrails, locking pins and the entry gate/chain/ bar in place.

SKYJACK, Page 11

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 exceed the rated capacity of the

aerial platform. Do make sure the load is evenly distributed on the platform.

• 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.

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.

SKYJACK, Page 12

February 2008

Mid Size & Full Size RT’s

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Section 2 - Operation

2.0 Operation

This section provides the necessary information needed to operate the aerial platform. 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, 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

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 • and function tests found in Table 2.8, 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 2.8 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 manufacturer-approved parts and components for the aerial

platform.

2.1-4 Owner’s Inspections

It is the responsibility of the owner to arrange daily, quarterly (or 150 hours) and annual inspections of the aerial platform. Refer to Table 2.8 for recommended maintenance and inspection areas and intervals. A record of annual inspection is kept on a label located on the scissor assembly. Refer to Table 2.2 in this manual.

WARNING

Maintenance must be performed by trained and 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.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 13

Section 2 - Operation

2.2 Major Components

Main Platform

Platform Control ConsoleEntry Gate

Extension Platform

Lifting

Mechanism

Hydraulic/

Electrical

Compartment

Outrigger

Maintenance Support

Engine Compartment

Base

SKYJACK, Page 14

SKYJACK Model 7127 Aerial Platform

February 2008

Mid Size & Full Size RT’s

Engine Powered

Section 2 - Operation

2.3 Major Assemblies

The aerial platform consists of three major assemblies: base, lifting mechanism and platform.

2.3-1 Base

The base is a rigid, one-piece weldment which supports two side compartments.

Models 71xx & 88xx

One compartment contains the hydraulic and • electrical components, and base control console. The other compartment contains the fuel and hydraulic tanks. The propane cylinder is either located behind the • access ladder or behind the fuel compartment. The front axle is steered by a hydraulic cylinder • and is either non-driven (2WD) or drive shaft/gear box driven (4WD). The rear axle is drive shaft/gear box driven and • has a spring-applied hydraulically released disc brake. A roll-out tray at the front of the base supports an • engine coupled with a two-section hydraulic pump providing power to the hydraulic system. An engine control console is also located at the • front of the base. The 12V starter battery is located in the hydraulic/• electrical compartment or at the front of the engine roll-out tray.

Model 9250

One compartment contains the hydraulic tank, • hydraulic and electrical components, base control console, emergency lowering battery and starter battery. The other compartment contains the fuel tank and • Liquid Propane (LP) tank (if equipped). The front axle is steered by a hydraulic cylinder • and is either non-driven (2WD) or drive shaft/gear box driven (4WD). The rear axle is drive shaft/gear box driven and • has two spring-applied hydraulically released brakes. A roll-out tray at the front of the base supports an • engine coupled with a two-section hydraulic pump providing power to the hydraulic system. An engine control console is also located at the • front of the base.

2.3-2 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 two-section pump, driven by an engine, provides hydraulic power to the lift cylinders.

2.3-3 Platform

The platform is constructed of a tubular support frame, a skid-resistant “diamond plate” platform surface and 39” hinged guardrails with 6” toe boards and mid-rails. The platform can be entered from either side through a spring-returned gate for full size RT’s and from the rear through a spring-returned gate for mid Size RT’s. The full size RT’s can be equipped with a front or rear (or both) extension platform(s). The mid size RT’s are equipped with a front extension platform. A 110V outlet is also located on the platform.

2.4 Serial Number Nameplate

The serial number nameplate, located at the rear of the aerial platform, lists the following:

Model number• Serial number• Aerial platform 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 •

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 15

Section 2 - Operation Component Identification

2.5 Component Identification

The following descriptions are for identification, explanation and locating purposes only.

2.5-1 Emergency Main Power Disconnect Switch

This switch is located at the side of the hydraulic/ electrical compartment.

Figure 2-1. Emergency Main Power Disconnect Switch

Emergency Main Power Disconnect Switch 1.

- 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.

2.5-2 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.

2.5-3 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.

2.5-4 Base Control Console

This control console is located in the hydraulic/electrical compartment. It contains the following controls:

Figure 2-2. Electrical Panel

Hourmeter 1. - This gauge records accumulated operating time of engine.

Platform Raise Pushbutton 2. - This pushbutton

controls “

Platform Lower Pushbutton 3. - This pushbutton controls “

Circuit Breakers 4. - In the event of a power overload or positive circuit grounding, the circuit breaker pops out. Push breaker back in to reset.

” raising of platform.

” lowering of 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.

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February 2008

Mid Size & Full Size RT’s

Engine Powered

Component Identification Section 2 - Operation

2.5-5 Engine Control Console

This control console is attached to the engine at the front of the base. It contains the following controls:

Figure 2-3. Engine Control Console - Dual Fuel

1. Engine Off/On/Start Switch - This switch, when set to middle position, will energize engine circuit. Set switch to up position to start engine (switch will return to middle position when released.) Set switch to down position to turn 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 Off/On Switch - This switch, when pulled out, will energize engine circuit and platform control console. Push switch in to turn engine off.

5. Engine Start Pushbutton - This pushbutton “ energizes the engine starter motor.

6. Engine Choke Pushbutton - This pushbutton sets the choke for starting a cold gasoline/propane engine. The choke remains fully engaged only while the button is pressed. Choke returns to normal position as soon as button is released.

7. Glow Plug Pushbut ton - Th is push but ton energizes the glow plugs to aid in starting a cold diesel engine. Glow plugs are only active while pushbutton is depressed.

”

Figure 2-4. Engine Control Console - Gasoline Engine

(Shown with Dual Fuel)

Figure 2-5. Engine Control Console - Diesel Engine

Mid Size & Full Size RT’s Engine Powered February 2008

8. 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.

SKYJACK, Page 17

Section 2 - Operation Component Identification

2.5-6 Brake System

The brake system for model 71xx & 8xxx is located on the main manifold in the hydraulic/electrical compartment. For model 9250, it is located at the rear of the base. The brakes must be manually disengaged before pushing, winching or towing. Refer to Section 2.13 for procedure on how to release the brake manually. The system contains the following controls:

Pin Brakes - Model 9250 (if equipped)

2.5-7 Emergency Lowering System

This emergency lowering system allows platform lowering in the event of an emergency or an electrical system failure. Refer to Section 2.15 for the emergency lowering procedures. The system contains the following controls:

Models 71xx & 8xxx

Figure 2-7. Emergency Lowering System

Disc Brake - Models 71xx & 8xxx (if equipped)

Figure 2-6. Brake System

1. Brake Hand Pump

2. Brake Auto Reset Valve Plunger

Holding Valve Manual Override Knob1. - Located

on the holding valve at the bottom of each lift cylinder.

Emergency Lowering Valve2. - Located at the rear of the hydraulic/electrical compartment.

Emergency Lowering Access Rod3. - Located at the right 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.

Figure 2-8. Emergency Lowering System

SKYJACK, Page 18

1. Emergency Lowering Pushbutton

2. Emergency Lowering Valve

February 2008

Mid Size & Full Size RT’s

Engine Powered

Component Identification Section 2 - Operation

2.5-8 Propane Cylinder (If Equipped)

The propane cylinder is located on the base of the aerial platform. It has the following control:

Figure 2-9. Propane Cylinder

1. Cylinder Main Valve - Turn this valve clockwise to shut off the fuel supply; counterclockwise to open it.

2.5-9 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. To lower the maintenance support, push lock lever rearward and the maintenance support will drop. Refer to Section 2.16 for procedure on how to use and store the maintenance support.

Figure 2-10. Maintenance Support

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.

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.

2.5-10 Manual Storage Box

This weather-resistant box is mounted inside of the hydraulic/electrical compartment. It contai n s op e r ating manual , ANSI manual of responsibility and ANSI/CSA certificate. The operating manual for this make and model of aerial platform must remain with the aerial platform and should be stored in this box.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 19

Section 2 - Operation Component Identification

2.5-11 Folding Guardrail System

This system, when folded down, reduces the height of the retracted aerial platform for transporting and traveling through doorways only. Refer to Section 2.14 for guardrail folding procedure.

DETENT BALL

Clear of side of

pivot bracket

Correct position of locking pin

Figure 2-11. Guardrail Locking Pin

2.5-12 Lanyard Attachment Anchorage

Use this 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 point to lift, anchor, secure or support the platform or any other apparatus or material.

Figure 2-12. Lanyard Attachment Ring

WARNING

The lanya rd att achme nt anc hora ge 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.

2.5-13 AC Outlet on Platform

This outlet is a source of 110V power on the platform.

WARNING

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.

Figure 2-13. AC Outlet on Platform

SKYJACK, Page 20

February 2008

Mid Size & Full Size RT’s

Engine Powered

Component Identification Section 2 - Operation

2.5-14 Platform Control Console

This removable control console is mounted at the right front of the platform. It contains the following controls:

Figure 2-14. Platform Control Console

1. Torq u e S w itch - 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.

5. Lift Enable Pushbutton - When depressed and

held, this “ functions to operate.

6. Emergency Stop Button - This button “ depressed, disconnects power to control circuit and shuts engine off.

7. Off/Lift/Drive Key Switch - Selecting “ position disconnects power from both lift and drive

circuits. Selecting “

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. High/Low Torque Switch - This switch selects

” high torque (low speed) or “ ” low

“ torque (high speed).

” pushbutton allows the lift

”, when

” off

” lift position energizes the

2. Horn Pushbutton - This “ 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 “ cold diesel engine.

4. Engine Start Pushbutton - This “ energizes the engine starter motor.

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

” glow plugs to aid in starting a

pressure bleeds off.

” pushbutton sounds

” pushbutton

NOTE

11. Low/High Throttle Switch - This rotary switch

allows selection between “ 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.

” low and “ ”

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 21

Section 2 - Operation Component Identification (Special Options)

2.6 Component Identification (Special Options)

This following descriptions are for identification, explanation and locating purposes only of optional equipment.

2.6-1 Generator/Outrigger Control Console

(If Equipped)

This control console is located next to the platform control console. These switches control the generator, and/or outriggers’ extension and retraction.

Figure 2-15. Outrigger Controls with All Options on

Auxiliary Control Console

5. Leveling Indicator Light - This light functions when the auto and manual level functions are in use and illuminates to display the status of the auto-leveling outriggers. The indicator light has the following states:

Off: The outriggers are fully retracted.

2.6-2 Powered Extension Control Console

This control console is mounted on one of the extension platform guardrails. It contains the following controls:

Flashing Rapidly: The outriggers are extending

but the platform is not level.

Flashing: The outriggers are extended but the

platform is not yet level.

Solid: The outriggers are extended and the

platform is level.

(If Equipped)

1. Generator Switch - This switch activates the generator.

2. Outrigger Extend/Retract Switches - These switches control the extension and retraction of each individual outrigger.

3. Auto-level Switch - When this switch is in the

“ extend position, each outrigger will extend

“ and automatically adjust until the aerial platform

is level. When the switch is in the “ position, the outriggers will retract.

4. Outrigger Enable Switch - This “ enable switch, when in the extend or retract position, activates the functions on the autolevel switch and the outrigger extend/retract switches.

” retract

” outrigger

Figure 2-16. Powered Extension Control Console

Enable Switch1. - This switch, when activated and held, allows the extension platform extend/retract switch functions to operate.

Extend/Retract Switch2. - This switch, when activated, extends or retracts the powered extension platform. Refer to Section 2.10-8 on how to extend/retract the powered extension platform.

SKYJACK, Page 22

February 2008

Mid Size & Full Size RT’s

Engine Powered

Component Identification (Special Options) Section 2 - Operation

2.6-3 1500W AC Inverter (If Equipped)

The inverter is located on the base of the aerial platform. It has the following controls:

Figure 2-17. 1500W AC Inverter

NOTE

The inverter operation is automatic. These controls do not need to be manipulated for

normal operation.

On/Off Switch1. - This diagnostic slide switch activates or terminates inverter operation. It should remain in the on position.

Status LEDs2. - These LEDs indicate the operating or fault status of the inverter.

15 Amp Circuit Breaker3. - In the event of a power overload or circuit grounding, the circuit breaker pops out. Press the breaker back in to reset.

GFCI Outlet4. - During inverter operation, this outlet provides AC power.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 23

Section 2 - Operation Operator’s Responsibility

2.7 Operator’s Responsibility

It is the responsibility of the operator, prior to each work shift, to perform the following:

1. Visual and Daily Maintenance Inspections

are de signed to di scover an y damage of • components before the aerial platform is put into service.

are done before the operator performs the function • tests.

WARNING

Failure to locate and repair damage, and discover loose or missing parts may result in an unsafe operating condition.

2. Function Tests

are designed to discover any malfunctions before • the aerial platform is put into service.

IMPORTANT

The operator must understand and follow the step-by-step instructions to test all

aerial platform functions.

Repairs to the aerial platform may only be made by a qualified service technician. After repairs are completed, the operator must perform visual and daily maintenance inspections & function tests again.

Sc hedu led maint enan ce in spections shall on ly be performed by qualified service technician (see

Table 2.8).

The operator should make a copy of the Operator’s Checklist (see Table 2.9) and fill out the visual and daily maintenance inspections and the function tests sections while performing the items outlined in Section 2.8 and

Section 2.9.

IMPORTANT

If damaged or any unauthorized variation from factory-delivered condit ion is discovered, the aerial platform must be

tagged and removed from service.

SKYJACK, Page 24

February 2008

Mid Size & Full Size RT’s

Engine Powered

Visual and Daily Maintenance Inspections Section 2 - Operations

Model 71xx Model 8xxx

Platform Control Console

Platform Assembly

Scissor Assembly

Limit Switch

Outrigger

Ladder

Electrical/Hydraulic Compartment

Base

Ladder

2.8 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.

NOTE

While doing visual and daily inspections in different areas, be aware to also inspect limit switches, electrical and hydraulic

components.

2.8-1 Labels

Refer to the labels section in this manual and determine that all labels are in place and are legible.

2.8-2 Electrical

Maintaining the electrical components is essential to good performance and service life of the aerial platform.

Electrical/Hydraulic Compartment

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•

2.8-3 Limit Switches

Ensure limit switches are properly secured with no signs of visible damage and movement is not obstructed.

2.8-4 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•

Base

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 25

Section 2 - Operation Visual and Daily Maintenance Inspections

Model 71xx

Electrical Panel

Emergency Main

Power Disconnect

Switch

Battery

Motion Control Manifold

2.8-5 Hydraulic/Electrical Compartment

Ensure all compartment latches are secure - and in proper working order.

Emergency Main Power Disconnect • Switch

Turn emergency 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.

Cushion Cylinder

Base Control Switches

Brake Manifold Tilt Sensor

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.

Emergency Lowering Access Rod

Main Manifold

WARNING

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.

SKYJACK, Page 26

February 2008

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.

Mid Size & Full Size RT’s

Engine Powered

Visual and Daily Maintenance Inspections Section 2 - Operations

Model 71xx

Electrical Panel

Emergency Main

Power Disconnect

Switch

Battery

Motion Control Manifold

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.

Cushion Cylinder

Base Control Switches

Brake Manifold Tilt Sensor

Hydraulic Oil (Model 9250)•

Ensure platform is fully lowered, and then - visually inspect the sight gauge located on the side of the hydraulic oil tank.

The hydraulic oil level should be at or - slightly above the top mark of the sight glass.

Emergency Lowering Ac c e s s Rod • (If Equipped)

Ensure rod is properly secured and there - is no visible damage.

Emergency Lowering Access Rod

Main Manifold

Tilt Sensor•

Ensure tilt sensor is properly - secure 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.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 27

Section 2 - Operation Visual and Daily Maintenance Inspections

Model 71xx

Propane Tank

Fuel Tank Hydraulic Tank

2.8-6 Hydraulic/Fuel Compartment

Ensure all compartment latches are - secure and in proper working order.

Hydraulic Tank (Models 71xx & 8xxx)•

Ensure hydraulic filler cap is secure. -

Ensure tank shows no visible damage - and no evidence of hydraulic leakage.

Hydraulic Oil (Models 71xx & 8xxx)•

Ensure platform is fully lowered, and then - visually inspect the sight gauge located on the side of the hydraulic oil tank.

The hydraulic oil level should be at or - slightly above the top mark of the sight glass.

Fuel Tank•

IMPORTANT

Before using your aerial platform ensure

there is enough fuel for expected use.

Fuel Leaks•

Failure to detect and correct fuel leaks will

result in an unsafe condition. An explosion or fuel fire may cause death or serious injury.

DANGER

Engine fuels are combustible. Inspect the aerial platform in an open, wellventilated area away from heaters, sparks and flames. Always have an approved fire extinguisher within easy

reach.

Perform a visual inspection around the following areas:

fuel tank • hoses and fittings•

Ensure fuel filler cap is secure. -

Ensure tank shows no visible damage - and no evidence of fuel leakage.

SKYJACK, Page 28

February 2008

Mid Size & Full Size RT’s

Engine Powered

Visual and Daily Maintenance Inspections Section 2 - Operations

Muffler and Exhaust

Engine Air Filter

Hydraulic Pump

Engine Tray

2.8-7 Engine Compartment

1. Pull on the two latches to pull out engine compartment.

Engine Control Console•

Ensure muffler and exhaust system are - properly secured, with no evidence of damage.

Engine

Battery

Radiator

Hydraulic Pump•

Ensure there are no loose or missing

parts and there is no visible damage.

Ensure all bolts are properly tightened. -

Ensure all fittings and hoses are properly - tightened and there is no evidence of hydraulic leakage.

Engine Control Console

Radiator•

Ensure radiator is secure.

Ensure there are no loose or missing - parts and there is no visible damage.

Check c o o la n t level an d a d d a s - needed.

Muffler and Exhaust•

Ensure muffler and exhaust system are - properly secured, with no evidence of damage.

Engine Tray•

Ensure there are no loose or missing - parts and no visible damage to the engine tray. Ensure that both tray-securing bolts are in place.

Engine Oil Level•

Maintaining the engine components - is essential to good performance and service life of the aerial platform.

WARNING

Beware of hot engine components.

Check oil level on dipstick

Oil level should be in the “safe” zone. Add - oil as needed.

Engine Air Filter•

Ensure there are no loose or missing - parts and there is no visible damage.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 29

Section 2 - Operation Visual and Daily Maintenance Inspections

Muffler and Exhaust

Engine Air Filter

Hydraulic Pump

Engine Tray

Fuel Leaks•

Failure to detect and correct fuel leaks will

result in an unsafe condition. An explosion or fuel fire may cause death or serious injury.

Engine

Battery

Radiator

Engine Control Console

DANGER

Engine fuels are combustible. Inspect the aerial platform in an open, wellventilated area away from heaters, sparks and flames. Always have an approved fire extinguisher within easy

reach.

Perform a visual inspection around the following areas:

hoses and fittings• fuel pump• fuel filter•

2. Push in engine compartment until the two latches lock to base.

SKYJACK, Page 30

February 2008

Mid Size & Full Size RT’s

Engine Powered

Visual and Daily Maintenance Inspections Section 2 - Operations

Platform Railing

Platform Control

Console

2.8-8 Platform Assembly

WARNING

Ensure that you maintain three points of

contact to mount/dismount platform.

1. Use the ladder of aerial platform to access platform.

2. Close the gate.

Ensure there are no loose or missing parts and there is no visible damage.

Ensure all fasteners are securely in - place.

Ensure all railings are properly positioned - and secured.

Ensure gate is in good working order. -

Lanyard Attachment Anchors•

Ensure attachment rings are secure and - no visible damage.

Platform Assembly

Platform Control Console•

Ensure all switches and controller are

returned to neutral and are properly secured.

Ensure there are no loose or missing - parts and there is no visible damage.

Powered Extension Control Console • (If Equipped)

Ensure all switches are returned to - neutral and are properly secured.

Ensure there are no loose or missing - parts and there is no visible damage.

WARNING

Ensure that you maintain three points of

contact to mount/dismount platform.

3. Use the ladder to dismount from platform.

AC Outlet on Platform•

Ensure outlet has no visible damage and - free from dirt or obstructions.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 31

Section 2 - Operation Visual and Daily Maintenance Inspections

Slider

Limit Switch

2.8-9 Lifting Mechanism

Scissor Guards•

Ensure there are no loose or missing - parts and there is no visible damage.

Sliders•

Ensure sliders are secure and there is no - visible damage.

Scissor Assembly

Scissor Bumper

Maintenance Support

Lift Cylinder

Scissor Bumpers•

Ensure bumpers are secure and shows - no sign of visible damage.

Lift Cylinder(s)•

Ensure each lift cylinder is properly - secured, there are no loose or missing par ts and the re is no evide nce of damage.

Ensure sliders’ path of travel are free from - dirt and obstructions.

1. Raise the platform (refer to Section 2.10-2) until there is adequate clearance to swing down the maintenance support (refer to

Section 2.16).

Maintenance Support•

Ensure maintenance support is properly - secured and shows no visible damage.

Scissor Assembly•

Ensure scissor assembly shows no visible - damage and no signs of deformation in weldments.

Ensure all pins are properly secured. -

Ensure cables and wires are properly - routed and shows no signs of wear and/ or physical damage.

SKYJACK, Page 32

February 2008

Ensure all fittings and hoses are properly - tightened and there is no evidence of hydraulic leakage.

2. Raise the platform until there is adequate clearance to swing up the maintenance su ppor t into stor age brack et. Refer to

Section 2.16.

3. Fully lower the platform.

Mid Size & Full Size RT’s

Engine Powered

Visual and Daily Maintenance Inspections Section 2 - Operations

Model 71xx Bottom View

Manual Storage

Box

Wheel/Tire

Assembly

Steer Cylinder

Tie Rod

2.8-10 Base

Base Weldment•

Ensure there are no visible cracks in - welds or structure and there are no signs of deformation.

Wheel/Tire Assembly•

The aerial platform is either equipped with

air tires or foam-filled tires. Tire and/or wheel failure could result in an aerial platform tipover. Component damage may also result if problems are not discovered and repaired in a timely fashion.

WARNING

Air filled tires are not permitted on some

models. Refer to Table 2.7.

WARNING

An over-inflated tire can explode and

may cause death or serious injury.

Check all tire treads and sidewalls for cuts, - cracks, punctures and unusual wear.

Check each wheel for damage and cracked - welds.

Assembly

Ladder

Base Weldment

Drive Axle

To safeguard maximum stability, achieve optimum aerial platform handling and minimize tire wear, it is essential to maintain proper pressure in all air-filled tires.

Check each tire with an air pressure gauge

and add air as needed.

Refer to Table 2.7 for wheel/tire specifications.

Drive Axle•

Ensure drive axle is properly secured, - there are no loose or missing parts, all fittings and hoses are properly tightened and there is no evidence of hydraulic leakage.

Steer Cylinder Assembly•

Ensure steer cylinder assembly is properly - secured, there are no loose or missing parts, all fittings and hoses are properly tightened and there is no evidence of hydraulic leakage.

Tie Rod•

Ensure there are no loose or missing - parts, tie rod end studs are locked and there is no visible damage.

Check each lug nut for proper torque to - ensure none are loose.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 33

Section 2 - Operation Visual and Daily Maintenance Inspections

Model 71xx Bottom View

Wheel/Tire

Assembly

Disc Brake (Models 71xx & 8xxx)•

Ensure there are no loose or missing parts and there is no visible damage.

Pin Brakes (Model 9250)•

Ensure there are no loose or missing - parts and there is no visible damage.

Ensure tabs are not locked. -

Manual Storage

Box

Steer Cylinder

Tie Rod

Assembly

Ladder

Base Weldment

Drive Axle

2.8-11 Manuals

Ensure a copy of operating manual, manual

of responsibilities and ANSI/CSA certificate are enclosed in manual storage box.

Check to be sure manual storage box is - present and in good condition.

Ensure manuals are legible and in good - condition.

Drive Motor•

Ensure there are no loose or missing - parts and there is no visible damage.

Ensure all bolts are properly tightened. -

Ladder•

Ensure there are no loose or missing - parts and there is no visible damage.

Outriggers•

Ensure there are no loose or missing - parts and there is no visible damage.

Always return manuals to the manual - storage box after use.

SKYJACK, Page 34

February 2008

Mid Size & Full Size RT’s

Engine Powered

Function Tests Section 2 - Operation

Model 71xx Hydraulic/Electrical Compartment

Electrical Panel

Emergency Main

Power Disconnect

Switch

Battery

2.9 Function Tests

Function tests are designed to discover any malfunctions before aerial platform is put into service. The operator must understand and follow step-by-step instructions to test all aerial platform functions.

IMPORTANT

Neve r use a malfunc t i oning aerial platform. If malfunctions are discovered, aerial pla tform must be tagged and placed out of service. Repairs to aerial platform may only be made by a qualified

service technician.

After repairs are completed, operator must perform a pre-operation inspection and a series of function tests again before putting aerial platform into service.

Base Control Switches

Emergency

Lowering Valve

2.9-2 Base Control Console

WARNING

Ensure that you maintain three points of contact when using the ladder to

mount/dismount platform.

1. Use the ladder of aerial platform to access platform.

2. Close the gate.

3. On platform control console, pull out “ emergency stop button.

4. Insert key into off/lift/drive key switch and

”

Prior to performing function tests, be sure to read and understand Section 2.10 - Start Operation.

2.9-1 Test Emergency Main Power Disconnect Switch

1. In hydraulic/electrical compartment, turn emergency main power disconnect switch to off position.

Result: Aerial platform functions should not

operate.

Mid Size & Full Size RT’s Engine Powered February 2008

select “

5. Select low/high throttle switch to “

throttle position.

6. Use the ladder to dismount from platform.

7. Turn emergency main power disconnect switch to on position.

” lift position.

” low

SKYJACK, Page 35

Section 2 - Operation Function Tests

Model 71xx Hydraulic/Electrical Compartment

Electrical Panel

Emergency Main

Power Disconnect

Switch

Battery

Test Platform Raise/Lower Pushbutton•

1. On the base co ntrol cons ole at the hydraulic/electrical compartment, push

in platform raise pushbutton to “ the platform or platform lower pushbutton

to “

” lower the platform.

Result: Platform raising and lowering

functions should operate.

Test Emergency Lowering • (Models 71xx & 8xxx)

” raise

Base Control Switches

Emergency

Lowering Valve

Test Emergency Lowering • (Model 9250)

1. Raise the platform.

2. On hydraulic/electrical compartment, depress and hold emergency lowering pu shbutton (item 1) to act ivate the auxiliary lowering valves. Pull out and hold the emergency lowering valve (item 2) to lower platform.

Result: The platform should lower.

1. Raise the platform.

2. Locate holding valve manual override knob at the base of each lift cylinder. Depress and turn counterclockwise. If necessary, use emergency lowering access rod that is located on the base of the aerial platform.

3. On hydraulic/electrical compartment, pull out and hold emergency lowering valve to fully lower the platform.

Result: The platform should lower.

4. To restore normal operation, depress and turn holding valve manual override knobs clockwise.

SKYJACK, Page 36

February 2008

Mid Size & Full Size RT’s

Engine Powered

Function Tests Section 2 - Operation

Enable Trigger

Switch

High/Low Torque

Switch

Horn

Pushbutton

Glow Plug

Pushbutton

Engine Start

Pushbutton

Lift Enable

Pushbutton

2.9-3 Platform Control Console

1. Ensure emergency main power disconnect switch is in on position.

Rocker Switch

Drive/Steer Controller

Low/High Throttle Switch

Operation Light

Raise/Lower Switch

Off/Lift/Drive Key Switch

Emergency Stop Button

Test Enable Trigger Switch•

1. Ensure engine is running.

WARNING

Ensure that you maintain three points of contact when using the ladder to

mount/dismount platform.

2. Use the ladder of aerial platform to access platform.

3. Close the gate.

4. On platform control console, pull out “ emergency stop button.

Test Emergency Stop•

1. Ensure engine is running.

2. Push in “ Result: Engine should shut down and

aerial platform functions should not operate.

” emergency stop button.

2. Without activating “ swit c h, at t empt to dr i ve th e aer i al platform.

Result: Dri ve func tions should not

operate.

Test Platform Raising/Lowering•

WARNING

Be aware of overhead obstructions

”

or other possible hazards around the

aerial platform when lifting.

1. Ensure engine is running.

2. Select off/lift/drive key switch to “ position.

3. Press and hold “ then select and hold raise/off/lower switch

to either “ Release switch to stop.

Result: Platform raising and lowering

functions should operate.

” raise or “ ” lower position.

” enable trigger

” lift

” enable pushbutton,

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 37

Section 2 - Operation Function Tests

Enable Trigger

Switch

Torque Switch

High/Low Torque

Switch

Horn

Pushbutton

Glow Plug

Pushbutton

Engine Start

Pushbutton

Lift Enable

Pushbutton

Test Steering•

1. Ensure engine is running.

2. Press rocker switch on top of controller

handle to “ ” left and “ ” right.

Result: Steer wheels should turn left and

right.

Test Driving•

1. Ensure path of intended motion is clear.

2. On platform control console, select

off/lift/drive key switch to “ position.

” drive

Rocker Switch

Drive/Steer Controller

Low/High Throttle Switch

Operation Light

Raise/Off/Lower Switch

Off/Lift/Drive Key Switch

Emergency Stop Button

Test Speed Limit•

WARNING

Be aware of overhead obstructions or other possible hazards around the

aerial platform when lifting.

1. Ensure path of intended motion is clear.

2. Raise the platform until approximately a height of 7 feet (2 meters) is reached and attempt to drive forward or reverse.

Result: Aerial platform should move slower

than when it is in stowed position.

3. Activate and hold “ switch.

4. Slowly move controller handle in “

forward or “ platform begins to move, and then return handle to center position.

Result: Aerial platform should move in

forward or reverse direction, and then come to a stop.

SKYJACK, Page 38

”enable trigger

” reverse direction until aerial

February 2008

”

Mid Size & Full Size RT’s

Engine Powered

Function Tests Section 2 - Operation

Enable Trigger

Switch

Torque Switch

High/Low Torque

Switch

Horn

Pushbutton

Glow Plug

Pushbutton

Engine Start

Pushbutton

Lift Enable

Pushbutton

Test Brakes•

WARNING

Brakes will engage instantly when you release the controller handle, causing

aerial platform to stop immediately.

Rocker Switch

Drive/Steer Controller

Low/High Throttle Switch

Operation Light

Raise/Off/Lower Switch

Off/Lift/Drive Key Switch

Emergency Stop Button

Test Horn•

1. Push “ Result: Horn should sound.

Test Tilt Sensor •

” horn pushbutton.

1. Ensure path of intended motion is clear.

2. Activate and hold “ switch.

3. Drive aerial platform “ brake by releasing controller handle.

Result: Aerial platform should come to

a stop. If aerial platform pulls to one side while stopping, do not operate aerial platform until brake adjustments have been checked.

4. Drive aerial platform “

brake again by releasing “ trigger switch only.

Result: Aerial platform should come to an

instant and abrupt stop. If aerial platform does not stop immediately, or if aerial platform pulls to one side while stopping, do not operate aerial platform until brake adjustments have been checked.

” enable trigger

” forward. Test

” enable

WARNING

Be aware of overhead obstructions or other possible hazards around the

aerial platform when lifting.

WARNING

Ensure that there are no personnel or obstructions in the path of travel,

including blind spots.

1. Move the aerial platform on to a slope not greater than 10°.

2. Use the l a d d e r t o d i s mo u n t fr o m platform.

3. On base control console, slowly raise the platform.

Result: When pl atfor m reach es an

appropriate height, a warning signal should sound and platform stop raising as lift and drive controls should be disabled.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 39

Section 2 - Operation Start Operation

2.10 Start Operation

Carefully read and completely understand the Operating Manual and all warnings and instruction labels (refer to labels section) on the aerial platform.

WARNING

Do not operate this aerial platform without proper authorization and training. Failure to avoid this hazard could result in death

or serious injury.

Before operating this aerial platform, perform the following steps:

Visual and daily maintenance inspections (see 1.

Section 2.8)

Function tests (see 2. Section 2.9)

3. Jobsite inspection It is the responsibility of the operator to perform

a jobsite inspection and avoid the following hazardous situations:

2.10-1 To Activate Base Control Console

WARNING

Ensure that you maintain three points of contact when using the ladder to mount/

dismount platform.

Use the ladder of aerial platform to access 1. platform.

Close the gate.2.

On platform control console, pull out “3. emergency stop button.

Insert key into off/lift/drive key switch and select 4.

” lift position.

“

Select low/high throttle switch to “5. position.

Use the ladder to dismount from platform.6.

” low throttle

”

holes or drop-offs• ditches or soft fills• floor obstructions, bumps or debris• overhead obstructions• electrical cords, hoses and high voltage • conductors hazardous locations• inadequate surface support to withstand all • load forces imposed by the aerial platform wind and weather conditions• the presence of unauthorized personnel• other possible unsafe conditions•

WARNING

An operator should not use any aerial platform that:

Turn emergency main power disconnect switch 7. to on position.

On base control console, pull out “8. stop button.

9. On the engine tray post: For dual fuel engine, select fuel supply by moving

fuel switch to either “ propane gas position.

Do not start the engine in the high throttle

position.

10. For dual fuel engine, depress and hold engine

“ ” start pushbutton until engine starts, then release. Do not overcrank starter.

If diesel engine (if equipped) is cold, depress and

hold glow plug pushbutton for 15 to 20 seconds.

Pull out on/off switch to “

” gasoline or “ ” liquid

CAUTION

” emergency

” on position.

Failure to avoid these hazards could

result in death or serious injury.

SKYJACK, Page 40

February 2008

Mid Size & Full Size RT’s

Engine Powered

Start Operation Section 2 - Operation

2.10-2 To Raise or Lower Platform Using Base Control Console

WARNING

Be aware of overhead obstructions or other possible hazards around the aerial

platform when lifting.

WARNING

Do not lower the platform unless the area below is clear of personnel and

obstructions.

Acti v a t e base c o nt ro l conso l e (ref e r to 1.

Section 2.10-1).

On the base control console at the hydraulic/2. electrical compartment, push in platform raise

pushbutton to “ lower pushbutton to “

Release switch to stop.

” raise the platform or platform

” lower the platform.

2.10-3 To Activate Platform Control Console

1. Turn emergency main power disconnect switch to on position.

2. For dual fuel engine, select fuel supply by moving

fuel switch to either “ propane gas position.

WARNING

Ensure that you maintain three points of contact when using the ladder to mount/

dismount platform.

3. Use the ladder of aerial platform to access platform.

4. Close the gate.

5. On platform control console, pull out “ emergency stop button.

6. Insert key into off/lift/drive key switch and select

” gasoline or “ ” liquid

”

” lift position.

“

7. Select low/high throttle switch to “ throttle position.

CAUTION

Do not start the engine in the high throttle

position.

8. I f d i e sel en g i ne ( if e quip p e d) i s c o ld, depress and hold glow plug pushbutton for 15 to 20 seconds.

9. Depress and hold “ ” engine start pushbutton until engine starts, then release. Do not overcrank starter.

” low

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 41

Section 2 - Operation Start Operation

2.10-4 To Raise or Lower Platform Using Platform Control Console

WARNING

Be aware of overhead obstructions or other possible hazards around the aerial

platform when lifting.

WARNING

Do not lower the platform unless the area below is clear of personnel and

obstructions.

Ac tiv ate platform control console (ref er to 1.

Section 2.10-3).

Press and hold 2. “ select and hold raise/off/lower switch to either

” raise or “ ” lower position. Release switch

“ to stop.

To protect against unintended movement of the aerial platform, push in the emergency stop button after you have arrived at your

desired location or elevation.

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

” enable pushbutton, then

WARNING

NOTE

surface.

2.10-5 To Drive Forward or Backward

WARNING

Be aware of blind spots when operating

the aerial platform.

WARNING

Ensure that there are no personnel or obstructions in the path of travel,

including blind spots.

Ac tiv ate platform control console (ref er to 1.

Section 2.10-3).

On platform control console, select off/lift/drive 2.

key switch to “

Activate and hold “3. ” enable trigger switch.

Push or pull controller handle forward or backward 4. to desired speed and direction of platform travel.

Return controller handle to neutral center position 5.

to stop. Release “ ” enable trigger switch.

To protect against unintended movement of the aerial platform, push in the emergency stop button after you have arrived at your

desired location or elevation.

” drive position.

WARNING

NOTE

Some models may be equipped with lift cut out at 8 m. To raise the platform higher, outriggers must support the aerial

platform.

SKYJACK, Page 42

February 2008

Mid Size & Full Size RT’s

Engine Powered

Start Operation Section 2 - Operation

2.10-6 To Steer

1. Act ivate platform con tro l co nso le (refer to

Section 2.10-3).

2. Select off/lift/drive key switch to “

position.

3. Activate and hold “ ” enable trigger switch.

4. Press “ ” rocker on top of controller handle in

either direction to steer.

NOTE

Steering is not proportional. Driving and

steering may be active at the same time.

2.10-7 To Select Drive Torque

1. High Torque: Select high torque when climbing

grades, traveling on rough terrain or when loading or unloading aerial platform. To activate high

torque, select high/low torque switch to “ high torque (low speed) position.

WARNING

Aerial platform must be in fully retracted position when operated on any grade. Driving while elevated on any grade may

result in death or serious injury.

” drive

2.10-8 To Extend or Retract Powered Extension Platform (If Equipped)

1. To extend the powered extension platform, ensure

” emergency stop button is pulled out.

“

2. On platform control console, insert key into

off/lift/drive key switch and select “ position.

3. On the powered extension control console,

select and hold “

the extend/retract switch to the “ position. Release switch to stop.

4. To retract platform, select and hold “

switch, then push extend/retract switch to “ retract position. Release switch to stop.

”

To protect against unintended movement of the aerial platform, push in the emergency stop button after you have arrived at your

desired location or elevation.

” enable switch, then push

WARNING

” lift

“ extend

” enable

“

2. Low Torque: Select low torque when traveling on a flat level surface. To activate low torque, select

high/low torque switch to “ speed) position.

WARNING

To protect against unintended movement of the aerial platform, push in the emergency stop button after you have arrived at your

desired location or elevation.

Mid Size & Full Size RT’s Engine Powered February 2008

” low torque (high

SKYJACK, Page 43

Section 2 - Operation Start Operation

2.10-9 To Extend or Retract Manual Extension

Platform

Figure 2-18. Manual Extension Platform

To extend/retract the manual extension platform, 1. remove the locking pin (item 1) then remove the push bar locking pins (item 2) and rotate the push bar towards the main platform. Extend the push bar until it locks at full extension and push/pull the extension platform using the push bar.

Upon full extension or retraction, reinsert the 2. locking pin on the platform (item 1) to prevent accidental movement of the manual extension platform during travel or transport.

When the push bar is not in use, pull the plungers 3. (item 3) on the push bar and retract it, then rotate it back to its resting position and lock it into place with the locking pins (item 2).

SKYJACK, Page 44

February 2008

Mid Size & Full Size RT’s

Engine Powered

Start Operation Section 2 - Operation

2.10-10 Hydraulic Outriggers (If Equipped)

These devices are mounted to the four corners of the base. When properly positioned, they increase the stability of the aerial platform.

3. Ensure each outrigger pad is in firm contact with a suitable supporting surface! Make adjustments if necessary using manual outrigger controls.

2.10-10a Before Operation

Move around aerial platform to check overhead 1. clearances and ground obstructions.

To low er th e pla tform comple tely, refer to 2.

Section 2.10-4. Outrigger controls are not

functional when platform is raised.

Check supporting surface under the tires and 3. outrigger pads is level, firm and capable of supporting aerial platform and rated load. Do not place outrigger pad on a street drain, manhole cover or other unsupported surface.

2.10-10b To Extend Outriggers

1. On outrigger control console, select and hold

“

” enable switch to provide power to outrigger

circuit.

2. Auto Extension: Select auto-level switch to “ extend position until leveling indicator light stops flashing and remains on in a solid state. Aerial platform should be completely supported by the outriggers and level at this point.

4. Operate all non drive functions as described in their respective sections.

NOTE

Each outrigger pad must be in firm contact with the ground for most aerial platform

functions to work.

NOTE

Drive functions are disabled if the outriggers are in any position other than

fully retracted.

WARNING

If alarm sounds during operation, the aerial platform is not level or an outrigger does not have firm ground contact. Lower the platform immediately! Make the necessary adjustments to level the

aerial platform.

2.10-10c To Retract Outriggers

”

1. On outrigger control console, select and hold

“

” enable switch to provide power to outrigger

circuit.

Manual Extension: Se lect co rres pondi ng

outrigger extend/retract switch to “ position until platform is fully supported by outriggers and is level. The indicator light flashes while platform is being leveled and remain solid once platform is level. The indicator light has the following states:

Off: The outriggers are fully retracted.

Flashing Rapidly: The outriggers are

extending but the platform is not level.

Flashing: The outriggers are extended but

the platform is not yet level.

Solid: The outriggers are extended and

the platform is level.

Mid Size & Full Size RT’s Engine Powered February 2008

“ extend

2. Auto Retraction: Select auto-level switch to

Manual Retraction: Select corresponding pairs

“

” retract position until outriggers are fully

retracted.

of outrigger extend/retract switch to “ position until outriggers are fully retracted.

NOTE

Limit switches are used to protect outriggers from being damaged. If drive functions are not available, visually check to see that all

outriggers are fully retracted.

SKYJACK, Page 45

” retract

Section 2 - Operation Start Operation

2.10-11 Generator (If Equipped)

To start hydraulic generator:

1. On platform control console, select off/lift/drive

key switch to “

2. Depress and hold engine “ ” start pushbutton until engine starts, then release. Do not overcrank starter.

3. On auxiliary control console, select hydraulic generator switch to energized position. Engine will automatically switch to high throttle and generator will start.

To restore normal operation:

Flip the switch to the off position. The generator 1. will turn off.

Activating any lift or outrigger functions, changing the key switch setting, activating the emergency stop or an engine stall will turn off the generator. The platform may be

lowered during generator operation.

” lift position.

NOTE

2.10-13 Shutdown Procedure

1. Completely lower the platform.

2. On platform control console, push in “ emergency stop button.

3. Select off/lift/drive select key switch to “ position and remove key.

WARNING

Ensure that you maintain three points of contact when using the ladder to mount/

dismount the platform.

4. Use the ladder to dismount from platform.

5. On the engine tray post:

For diesel engine, push in off/on switch to “• position.

For dual fuel engine, select off/on/start switch to •

” off position.

“

6. Turn emergency main power disconnect switch to off position.

” off

”

2.10-12 Electrical Inverter (If Equipped)

The inverter is operational with alternating current available at all times when, and only when, the engine is running at high throttle. Deselecting the high idle throttle setting or stopping the engine will turn the inverter off.

To check status of inverter:

During routine operation, the on/off switch should 1. remain in the on position. To prevent automatic inverter operation when high throttle is activated, slide the on/off switch on the inverter to the off position.

Inverter state is indicated by the LEDs on the face 2. of the inverter. A glowing green LED indicates normal operation. If a fault occurs, the status LEDs will indicate the area responsible. After the fault condition is corrected, the inverter will automatically reset itself.

SKYJACK, Page 46

February 2008

Mid Size & Full Size RT’s

Engine Powered

Section 2 - Operation Refueling Procedure

2.11 Refueling Procedures

This section provides the operator with the procedure on how to refuel the engine with regular fuel and install the propane cylinder.

IMPORTANT

Before using the aerial platform ensure

there is enough fuel to finish the job.

WARNING

Follow all local and federal regulations

for propane handling.

Use extreme caution while refueling • aerial platforms.

Ensure engine and all systems are • turned off before refueling.

Refuel aerial platform only in a well • ventilated area away from open flame and other sources of ignition, authorized by your employer and supervisor.

Liquid propane gas fuel is a gas that • is heavier than air. It will settle in low spots. Any flame or spark could cause a fire that could cause serious injury.

When changing liquid propane gas • cylinder, Check all connections for damage or missing parts.

Never try to start an aerial platform if • you smell gas.

For gasoline engine models, use only • unleaded gasoline with an octane rating 87 or higher.

2.11-1 Regular Fuel

Ensure engine and all systems are turned off and 1. emergency stop buttons are depressed.

Open fuel compartment door and remove fuel 2. cap.

Carefully pour fuel into tank ensuring that no 3. spillage occurs.

Securely replace fuel cap.4.

Ensure there are no leaks in the fuel system.5.

Wipe up any spilled fuel.6.

Dispose of rags in an approved container.7.

Protection of Environment from Chemical Dangers

WARNING

Gasoline, diesel fuel, engine oil and hydraulic fluid are chemicals, which can contaminate the environment. If they are spilled during filling and reach the water, they can cause damage to the environment, e.g., death of fish. For such damage, the party responsible is liable! Therefore, gasoline, diesel fuel, engine oil or hydraulic fluid must not get into the sewage system, streams, rivers or other surface water. For that reason, immediately remove the dripped off or spilled gasoline, diesel fuel, engine oil or hydraulic fluid with appropriate means and dispose of these means according to

the regulations.

WARNING

Do not smoke in an area where aerial

platforms are stored or refueled.

SKYJACK, Page 48

February 2008

Mid Size & Full Size RT’s

Engine Powered

Refueling Procedure Section 2 - Operation

2.11-2 Propane

WARNING

Follow all local and federal regulations

for propane handling.

To remove a propane cylinder:

Ensure engine and all systems are turned off and 1. emergency stop button is depressed.

Turn propane cylinder’s main valve clockwise to 2. shut off fuel supply to engine.

Start engine and allow it to stop naturally. Restart 3. engine to ensure fuel lines are empty.

Di s con n ect h o se f r om e m pty p r opa n e 4. cylinder by detaching the coupling. Turn fitting counterclockwise.

Loosen two propane cylinder straps by pulling 5. up on the metal clips. Disconnect straps from hooks.

To install a propane cylinder:

Ensure engine and all systems are turned off and 1. emergency stop button is depressed.

Plac e propan e cylin d e r on bracket or in 2. compartment.

Ensure metal peg on bracket or compartment is 3. inserted into propane cylinder rim.

Reconnect propane cylinder straps to hooks and 4. fasten tightly.

Attach coupler to propane cylinder and turn 5. clockwise to tighten fitting.

Apply soap water or neutral detergent to pipe 6. connection and cylinder.

Open valve 1/4 turn counterclockwise and check 7. for any gas leaks.

Wipe off soap water or detergent after inspection 8. is completed.

Remove the propane cylinder.6.

Open main valve fully if there are no leaks.9.

NOTE

The aerial platform is now ready for use by an authorized, qualified operator who has read and completely understands all of

Section 2 operations in this manual.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 49

Section 2 - Operation Loading/Unloading

2.12 Loading/Unloading

Know all national, state or territorial/provincial and local rules which apply to your loading/unloading of aerial platforms.

Only qualified personnel shall operate machinery during loading/unloading.

Be sure vehicle capacity and loading equipment hoists, chains, straps, etc., are sufficient to withstand maximum aerial platform weight.

The transport vehicle must be parked on a level surface and must be secured to prevent rolling while aerial platform is being loaded/unloaded.

2.12-1 Lifting

When it is necessary to lift the Skyjack aerial platform the following conditions must be met:

The platform must be fully lowered.• The emergency main power disconnect switch must be in off position.• The hydraulic/electrical and fuel compartments must be closed and securely latched.• The extension platform must be retracted and secured.• The platform control console must be secured to the railings or removed.• The platform must be cleared of all personnel, tools and materials.• The lifting/rigging may be attached to all four lifting points as illustrated in • Figure 2-19.

Tie down/lifting points

Figure 2-19. Tie Downs/Lifting Points

NOTE

The mass of the aerial platform is as per Table 2.3. The center of gravity is approximately located in the middle of the aerial platform, front to back and side to side, as illustrated in Figure 2-20. Vertically, the

center of gravity is approximately just above the base chassis.

Center of

gravity

Figure 2-20. Center of Gravity

Tie down/lifting pointsTie down/lifting points

Center of gravity

SKYJACK, Page 50

February 2008

Mid Size & Full Size RT’s

Engine Powered

Loading/Unloading Section 2 - Operation

NOTE

The aerial platform can be lifted with a forklift from the sides but Skyjack does not recommend this use.

Lift with forks in designated pockets as illustrated in Figure 2-21.

Forklift pocket

Figure 2-21. Forklift Pockets

2.12-2 Driving

When driving the aerial platform:

Ramp or dock capacity should be sufficient to withstand maximum aerial platform weight.• Ramp should be equipped with side guards to prevent inadvertent fall from the ramp.• Incline should not exceed aerial platform gradeability (refer to • Table 2.3). Aerial platform brakes should be checked for proper operation.• Aerial platform speed should be on high torque setting.•

When transporting, the aerial platform must be secured to the truck or trailer deck. Tie downs are

available as illustrated in Figure 2-19.

Forklift pocket

WARNING

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 51

Section 2 - Operation Winching and Towing Procedure

2.13 Winching and Towing Procedure

This section provides the operator with procedure about winching and towing and on how to manually release brakes.

WARNING

Ensure platform is fully lowered before winching or towing. Sudden motion could cause aerial platform to become unstable.

Death or serious injury could result.

WARNING

In emergency situations where aerial platform functions are not available and lowering is impeded by an obstacle, utmost care must be taken to move aerial platform far enough to clear obstacle. In such cases, operation must be extremely smooth with no sudden movements and must not exceed a speed of 2”/sec

(50 mm/sec).

WARNING

When pushing, winching or towing, do

not exceed 3.2 km/h (2 mph).

WARNING

Do not push, winch or tow aerial platform onto a slope, or brake the towing vehicle rapidly. Do not pull aerial platform down

an incline towards a winch.

2.13-1 To Release the Brakes Manually

Models 71xx & 8xxx

WARNING

Brakes must be manually disengaged

before pushing, winching or towing.

1. Ensure aerial platform is on level ground. Chock or block wheels to prevent aerial platform from rolling.

2. Turn emergency main power disconnect switch to off position.

3. Loc ate the manifold in hydraulic/elec tri cal compartment.

4. Push in brake auto valve plunger.

5. Grasp brake hand pump and rapidly depress until firm resistance is felt. The brake is now released.

6. Remove wheel chocks or blocks then push, winch or tow aerial platform to desired location.

WARNING

Brakes must be reengaged immediately

after reaching desired location.

7. Position aerial platform on a firm and level surface.

8. Chock or block wheels to prevent aerial platform from rolling.

9. Reengage brake by pulling out brake valve plunger.

WARNING

Do not manually disengage brakes if the

aerial platform is on a slope.

Figure 2-22. Brake System

1. Brake Hand Pump

2. Brake Auto Reset Valve Plunger

SKYJACK, Page 52

February 2008

Mid Size & Full Size RT’s

Engine Powered

Winching and Towing Procedure Section 2 - Operation

Model 9250

WARNING

Do not manually disengage brakes if the

aerial platform is on a slope.

Figure 2-23. Brake

1. Ensure aerial platform is on level ground. Chock or block wheels to prevent aerial platform from rolling.

2. Turn emergency main power disconnect switch to off position.

3. For Left-Side Brake: Using a 3/4” (19 mm) wrench, rotate the block (item 1) on the brake pin 90° clockwise. The brake pin should be clear of the brake disc.

9. For Left-Side Brake: Using a 3/4” (19 mm) wrench, rotate the block (item 1) on the brake pin 90° counterclockwise.

10. For Right-Side Brake: Using a 3/4” (19 mm) wrench, rotate the block (item 1) on the brake pin 90° clockwise.

4. For Right-Side Brake: Using a 3/4” (19 mm) wrench, rotate the block (item 1) on the brake pin 90° counterclockwise. The brake pin should be clear of the brake disc.

5. Remove wheel chocks or blocks, then push, winch or tow aerial platform to desired location.

WARNING

Brakes must be reengaged immediately

after reaching desired location.

6. Position aerial platform on a firm and level surface.

7. Chock or block wheels to prevent aerial platform from rolling.

8. Reengage brake by doing the following steps.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 53

Section 2 - Operation Guardrail Folding Procedure

2.14 Guardrail Folding Procedure

When folded down, the folding guardrail system reduces the height of the retracted aerial platform for transporting only.

WARNING

Any lowered guardrail will create a fall hazard. Remain away from the sides of the platform while raising or lowering the

guardrails to avoid falling.

Front

Left Extension

Left-side Guardrail

Figure 2-24. Folding Guardrail System

Guardrail Locking Pin with Lanyard1. - This pin is used to lock the guardrail in place.

upright or properly locked.

Right Extension

WARNING

Rear

Right-side Guardrail

To fold the guardrail system down:

1. Ensure aerial platform is on level ground.

2. Remove the platform control console and outrigger control console (if equipped) and lay it down on the platform.

3. Turn emergency main power disconnect switch to off position.

WARNING

Ensure that you maintain three points of contact when using the ladder to mount/

dismount platform.

4. Use the ladder of aerial platform to access platform.

5. Close the gate.

6. Retract the extension platform fully. Refer to

Section 2.10-8.

WARNING

Any lowered guardrail will create a fall hazard. Remain away from the sides of the platform while raising or lowering the

guardrails to avoid falling.

7. Fold down guardrails in the following order: rear, front, left extension, right extension, left-side and right-side (refer to Figure 2-24.)

8. Remove all the locking pins on the rear guardrail and fold the guardrail down.

9. Remove all the locking pins that secured the front guardrail to the left extension guardrail then swing it towards the right extension.

WARNING

The scissor assembly must be fully lowered before raising or lowering the

guardrails.

SKYJACK, Page 54

10. Remove all the locking pins on the left extension

11. Remov e al l th e locking pin s on th e ri g ht

12. Remove all the locking pins on the left-side

13. Remove all the locking pins on the right-side

February 2008

and fold it down.

extension guardrail and fold it down with the front guardrail.

guardrail and fold it down.

Mid Size & Full Size RT’s

Engine Powered

Guardrail Folding Procedure Section 2 - Operation

7. Swing up the right extension guardrail and the front guardrail and lock them in place by inserting all locking pins on the right extension.

8. Swing up the left extension guardrail and lock it in place by inserting all locking pins.

9. Swing the front guardrail forward and lock it in place by inserting all locking pins.

Figure 2-25. All Guardrails Folded Down

To raise the guardrail system up:

10. Swing up the rear guardrail then lock it in place by inserting all locking pins.

WARNING

The scissor assembly must be fully lowered before raising or lowering the

guardrails.

1. Ensure aerial platform is on level ground.

2. Turn emergency main power disconnect switch to off position.

WARNING

Ensure that you maintain three points of contact when using the ladder to mount/

dismount platform.

3. Use the ladder of aerial platform to access platform.

WARNING

Any lowered guardrail will create a fall hazard. Remain away from the sides of the platform while raising or lowering the

guardrails to avoid falling.

11. Mount the platform control console and outrigger control console (if equipped) at the front right of the platform. Lock them in place.

WARNING

upright or properly locked.

WARNING

Ensure that the detent ball of each locking pin is all the way through and each cotter

pin fully inserted into the pin hole.

4. Raising the guardrails up is done in the following order: right-side, left-side, right extension, left extension, front and rear.

5. Swing up the right-side guardrail and lock it in place by inserting all locking pins.

6. Swing up the left-side guardrail and lock it in place by inserting all locking pins.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 55

Section 2 - Operation Emergency Lowering Procedures

2.15 Emergency Lowering Procedures

This section guides the operator on how to use the emergency lowering system. This system allows platform lowering in the event of an emergency or an engine malfunction.

Models 71xx, 8831 & 8841

WARNING

Keep clear of scissors mechanism when

using emergency lowering valve.

1. Remove any obstructions from a descending platform.

2. Extension platform(s) may need to be retracted or aerial platform may need to be moved to clear the obstruction. Refer to Section 2.13 for winching and towing procedures.

Models 8243, 8850 & 9250

WARNING

Keep clear of scissors mechanism when

using emergency lowering valve.

1. Remove any obstructions from a descending platform.

2. Extension platform(s) may need to be retracted or aerial platform may need to be moved to clear the obstruction. Refer to Section 2.13 for winching and towing procedures.

Figure 2-26. Emergency Lowering System

3. L oc a te ho l di ng va l ve ov e rr id e k n ob s (item 1) at base of each lift cylinder. Depress and turn counterclockwise. If necessary, use emergency lowering access rod (item 3) that is located on aerial platform base.

4. On the hydraulic compartment, pull out and hold emergency lowering valve (item 2) to lower platform.

5. To restore normal operation, depress and turn holding valve override knobs clockwise.

Figure 2-27. Emergency Lowering System

3. On hydraulic compartment, depress and hold emergency lowering pushbutton (item 1) to activate the auxiliary lowering valves. Pull out and hold the emergency lowering valve (item 2) to lower platform. No further actions are required to restore normal operation.

SKYJACK, Page 56

February 2008

Mid Size & Full Size RT’s

Engine Powered

Maintenance Support Procedure Section 2 - Operation

2.16 Maintenance Support Procedure

Figure 2-28. Maintenance Support

Maintenance Support1. - 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.

To Store the Maintenance Support

1. Turn emergency main power disconnect switch to on position.

2. Raise platform until there is adequate clearance to swing up the maintenance support.

3. Swing bar up into storage bracket.

4. Lower the 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.

Proper Use of Maintenance Support

1. Remove all material from platform.

2. Raise platform until there is adequate clearance to swing down maintenance support.

3. Push lock lever rearward.

4. Swing maintenance support down from storage bracket into a vertical position.

5. Remove hands and arms from scissors area.

6. Lower platform until bottom end of maintenance support contacts the labeled cross bar and scissors are supported by maintenance support.

7. Turn emergency main power disconnect switch to off position

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 57

Tables Section 2 - Operation

7127 7135 8243 8850 8831 8841 9250

Base control *******

Joystick control *******

Dual range (torque/speed) selector *******

Operator horn *******

Diamond pattern, all steel platform deck construction *** ****

Hinged guardrail system *******

Lanyard attachment rings ******

Front-mounted manual extension platform ****

Front-mounted powered extension platform ****

Access ladders and gates at both sides of platform ***

AC outlet on platform *******

Self-centering scissors design ***

Flashing amber beacon *******

Motion alarm *******

Cabinets with lockable swing-out door *******

Hourmeter *******

Tilt alarm with lift/drive cut-out *******

Color-coded, numbered wiring system *******

Engine mounted on roll-out tray ** *****

65 hp GM 1.6L dual fuel - gasoline/propane engine *****

23.1 kW (31 hp) Kubota DF972 dual fuel - gasoline/propane engine **

Tie-down points *******

Grip lug air-filled tires *** ***

Grip lug foam-filled tires *

4-wheel drive ****** *

Independently operated hydraulic outriggers ** *

Spring-applied hydraulically released disc brake system ******

Dual spring-applied hydraulically released parking brakes *

Front-mounted manual extension platform * *

Rear-mounted manual extension platform **

Front-mounted powered extension platform ***

Rear-mounted powered extension platform ***

19.4 kW (26 hp) Kubota D1105 diesel water-cooled engine *******

Grip lug foam-filled tires *** ***

2-wheel drive *** ***

Independently operated hydraulic outriggers ** **

1500 watt AC Inverter ***** **

3500 watt hydraulic AC generator *******

60375AC-ANSI

O P T I O N A L E Q U I P M E N T

Mid-Size RT’s Full-Size RT’s

S T A N D A R D E Q U I P M E N T

MODEL

Table 2.1 Standard and Optional Features

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 59

Section 2 - Operation Tables

60141AB

Owner’s Name

Recording Year #

Recording Date

Model Number: ____________________________ Serial Number: ____________________________

912 3 856 74

As described earlier in this section, this decal is located on the scissor assembly. It must be completed after an annual inspection has been completed. Do not use the aerial platform if an inspection has not been recorded in the last 13 months.

Inspected By

Table 2.2 Owner’s Annual Inspection Record

SKYJACK, Page 60

February 2008

Mid Size & Full Size RT’s

Engine Powered

Tables Section 2 - Operation

7127 7135 8243 8850 8831 8841 9250

8,420 lb. 8,850 lb. 10,600 lb. 11,460 lb. 9,670 lb. 10,570 lb. 14,700 lb.

3819 kg 4014 kg 4808 kg 5198 kg 4386 kg 4794 kg 6668 kg

92”

2.34 m

176”

4.47 m

74” x 168”

1.88 m x 4.27 m

33’ 41’ 49’ 56’ 37’ 47’ 56’

10.1 m 12.5 m 14.9 m 17.1 m 11.3 m 14.3 m 17.1 m

27’ 35’ 43’ 50’ 31’ 41’ 50’

8.2 m 10.7 m 13.1 m 15.2 m 9.4 m 12.5 m 15.2 m

60.5” 67.5” 75” 82” 59” 69” 79”

1.54 m 1.71 m 1.91 m 2.08 m 1.5 m 1.75 m 2.01 m

26’

7.9 m

3.5 mph 3.5 mph 2.0 mph

5.6 km/h 5.6 km/h 3.2 km/h

Raise (Rated Load) 43 sec. 41 sec. 45 sec. 46 sec. 58 sec. 56 sec. 67 sec.

Lower (Rated Load) 46 sec. 44 sec. 58 sec. 52 sec. 44 sec. 53 sec. 72 sec.

Kubota (Dual Fuel)

Kubota (Diesel)

GM (Dual Fuel)

25%

60348AF-ANSI

150” 137.5”

Weights are approximate; refer to serial nameplate for specific weight. Values shown are for standard 2WD machines on air tires with a manual extension platform (Mid Size RT’s) and no extension platforms (Full Size RT’s).

N/A

N/A 900 (Idle) /1400 (Low) / 2800 (High)

30%30%

1400 (Low) / 2800 (High)1400 (Low) / 2800 (High)

1.82 m

3.81 m

1.63 m x 2.97 m 1.73 m x 3.39 m

64” x 117” 68” x 133”

2.21 m

3.5 m

3.0 mph

0.56 km/h

Gradeability

Engine

(RPM)

2050 (Low) / 3500 (High)

Speed

Please refer to Table 2-7 for tire specification and usage.

Height

Platform Lowered

4.8 km/h

0.35 mph

Normal Drive

Platform Elevated

0.6 mph

Elevated Drive

MODEL

Full Size RT’sMid Size RT’s

71.5” 87”

0.97 km/h

Weight*

Width

Length

Platform Size

Drive Full

Working

Tires

Table 2.3 Specifications and Features

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 61

Section 2 - Operation Tables

Capacity

Number of Occupants

Capacity

Number of Occupants

Capacity

Number of

Occupants

1500 lb. 500 lb.

680 kg 227 kg

1000 lb. 350 lb.

454 kg 159 kg

1000 lb. 350 lb.

454 kg 159 kg

800 lb. 300 lb.

363 kg 136 kg

2500 lb.

1134 kg

2000 lb. 500 lb.

907 kg 227 kg

1700 lb. 500 lb. 500 lb.

771 kg 227 kg 227 kg

1700 lb.

771 kg

1500 lb. 500 lb.

680 kg 227 kg

1500 lb. 500 lb. 500 lb.

680 kg 227 kg 227 kg

2000 lb.

907 kg

1500 lb. 500 lb.

680 kg 227 kg

1500 lb. 500 lb. 500 lb.

680 kg 227 kg 227 kg

60376AD-ANSI

NOTE:

Occupants and materials are not to exceed rated load.

Refer to capacity label at sides of platform for additional information and for models equipped with options.

Two Extension

Platforms

Capacities listed are for standard machines equipped with #6 tires.

Two Extension

Platforms

8243

One Extension

Platform

No Extension

Platform

8850

One Extension

Platform

883188419250

Not Available

One Extension

Platform

Not Available

No Extension

Platform

Not Available

One Extension

Platform

No Extension

Platform

One Extension

Platform

Two Extension

Platforms

Not Available4

Second Extension

MODEL

7127

One Extension

Platform

Total First Extension

52Not Available

7135

Not Available

One Extension

Platform

522

Not Available

Table 2.4 Maximum Platform Capacities (Evenly Distributed)

SKYJACK, Page 62

February 2008

Mid Size & Full Size RT’s

Engine Powered

Tables Section 2 - Operation

Capacity

Number of

Occupants

Capacity

Number of Occupants

Capacity

Number of

Occupants

1500 lb. 500 lb.

680 kg 227 kg

900 lb. 300 lb.

408 kg 136 kg

2000 lb.

907 kg

1700 lb. 500 lb.

771 kg 227 kg

1400 lb. 500 lb. 500 lb.

635 kg 227 kg 227 kg

1250 lb.

567 kg

1250 lb. 500 lb.

567 kg 227 kg

1250 lb. 500 lb. 500 lb.

567 kg 227 kg 227 kg

1500 lb.

680 kg

1500 lb. 500 lb.

680 kg 227 kg

1500 lb. 500 lb. 500 lb.

680 kg 227 kg 227 kg

60376AD-ANSI

NOTE:

Total First Extension Second Extension

MODEL

Refer to capacity label at sides of platform for additional information and for models equipped with options.

7127

One Extension

Platform

Occupants and materials are not to exceed rated load.

No Extension

Platform

One Extension

Platform

Two Extension

Platforms

9250 713588318841

One Extension

Platform

No Extension

Platform

One Extension

Platform

Two Extension

Platforms

No Extension

Platform

One Extension

Platform

Two Extension

Platforms

Not Available25

31Not Available

6 Not Available

62Not Available

522

5 Not Available

52Not Available

522

5 Not Available

52Not Available

Table 2.5 Maximum Platform Capacities (Evenly Distributed with Optional #7 Tires)

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 63

Section 2 - Operation Tables

lb. kg lb. kg psi kPa psf

kg/m

min*

7920 3592 3168 1437 101.7 701.2 150.0 732.4

max*

12180 5525 4872 2210 121.1 835.0 230.7 1126.4

7127

min*

9360 4246 3744 1698 47.7 328.8 155.5 759.2

Outrigger Pads

max*

12180 5525 4872 2210 62.1 427.9 202.3 987.9

min*

8850 4014 3540 1606 106.8 736.4 167.6 818.4

max*

11980 5434 4792 2174 120.4 830.1 226.9 1107.9

7135

min*

9790 4441 3916 1776 49.9 343.9 162.6 794.1

Outrigger Pads

max*

12110 5493 4844 2197 61.7 425.5 201.2 982.2

min*

10600 4808 4240 1923 115.0 792.9 169.9 829.5

max*

11980 5434 4792 2174 120.4 830.1 192.0 937.4

8243

min*

10600 4808 4240 1923 54.0 372.4 176.1 859.8

Outrigger Pads

max*

12920 5860 5168 2344 65.8 453.9 214.6 1047.9

min*

11460 5198 4584 2079 118.4 816.3 167.8 819.3

max*

12530 5684 5012 2273 122.3 843.2 183.5 895.8

8850

min*

11460 5198 4584 2079 58.4 402.6 196.2 958.2

Outrigger Pads

max*

12530 5684 5012 2273 63.8 440.2 214.6 1047.6

min*

9670 4386 3868 1754 110.9 764.6 148.8 726.4

max*

13350 6055 5340 2422 125.0 861.8 205.4 1002.9

8831

min*

10540 4781 4216 1912 53.7 370.3 157.1 767.0

Outrigger Pads

max*

14300 6486 5720 2594 72.9 502.4 213.1 1040.6

min*

10570 4794 4228 1918 114.9 792.2 162.6 794.0

max*

13830 6273 5532 2509 126.4 871.5 212.8 1038.9

8841

min*

11440 5189 4576 2076 58.3 401.9 170.5 832.5

Outrigger Pads

max*

14820 6722 5928 2689 75.5 520.7 220.9 1078.4

min*

14700 6668 5880 2667 128.9 888.7 179.5 876.4

max*

17470 7924 6988 3170 135.6 934.9 213.3 1041.5

9250

min*

14700 6668 5880 2667 74.9 516.4 145.5 710.7

Outrigger Pads

max*

18410 8351 7364 3340 93.8 646.8 182.3 890.0

60379AD-ANSI

NOTE:

The LCP or OUP that an individual surface can withstand varies from structure to structure and is generally determined by the engineer or architect for that particular structure.

min - Total aerial platform weight with no options max - Aerial platform weight + all options LCP - Locally Concentrated Pressure

is a measure of how hard the aerial platform presses on the areas in direct contact with the floor. The floor covering (tile, carpet, etc.) must be able to withstand more that the indicated values above.

OUP - Overall Uniform Pressure is a measure of the average load the aerial platform imparts on the whole surface directly underneath it. The structure of the operating surface (beams, etc.) must be able to withstand more than the indicated values above.

7135

8831

8841

9250

8243

8850

MODEL

Total Aerial Platform Load

7127

WHEEL LCP ** OUP **

Total Aerial Platform

Weight

Table 2.6 Floor Loading Pressure

SKYJACK, Page 64

Mid Size & Full Size RT’s

February 2008

Engine Powered

Tables Section 2 - Operation

Floor Loading Pressure

Locally Concentrated Pressure (LCP): Overall Uniform Pressure (OUP):

Foot Print Area = Length x Width

=πr

Weight of Aerial Platform + Capacity

LCP =

Foot Print Area x 4 (Tires)

Length

Base Area = Length x Width

Weight of Aerial Platform + Capacity

OUP =

Base Area

Width

Length

Width

Diameter

Length

WARNING

Intermixing tires of different types or using tires of types other than those originally supplied with this equipment can adversely affect stability. Therefore, replace tires only with the exact original Skyjack-approved type. Failure to operate with matched approved tires in good condition may

result in death or serious injury.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 65

Section 2 - Operation Tables

7127

7135

8243

8850

8831

8841

9250

10-16.5 75*

CARLISLE US LOADER

(517.1)*

10-16.5 OTR OUTRIGGER 75*

(Non-Marking)

(517.1)*

31-15.5-15 45*

GOODYEAR TERRA XTRAC

(310.3)*

10-16.5

CARLISLE US LOADER

10-16.5 OTR OUTRIGGER

(Non-Marking)

31-15.5-15

GOODYEAR TERRA XTRAC

60378AD-ANSI

†

Usage†

Fill Type Ply Rating

MID SIZE FULL SIZE

Tire Size

#6A

Air

#6A 10

#7A 8

Fill Specification

N/A SSS

OOO

SSS

N/A OOO

O OON/A OOO

OS#6F

Foam

10 N/A

#7F 8 N/A

OOO

#6F 10 N/A O

OOOO

OOO

(N/A) Not Available

Pressure (Factory)

(kPa)

Factory preset @ 20°C, Check pressures regularly as tires can lose pressure over time and over different ambient temperatures even under normal conditions.

Usage: (S)tandard Or (O)ptional

Backspace

Outboard

Inboard

SECTION A-A

Rim Backspace Diagram

3-3/4” 4-3/4” 4-3/4” 3-3/4” 3-3/4” 3-3/4”

95 mm 121mm 121mm 95 mm 95 mm 95 mm

#7 & #7F

60380AC-ANSI

#6 & #6F

Rim Size

Serial Number

7127

7135

Contact Skyjack Service

Department

Backspace

All models are 4-3/8”

88508243

3-3/4”

8831 8841 9250

95 mm

Table 2.7 Tire Specifications

WARNING

Air pressure can affect stability. Temperature changes can affect air pressure. It is important to visually inspect all tires for proper tire inflation prior to use. Tires should be checked by end user on a daily basis. Tire inflation pressures must be checked weekly with a calibrated gauge. If the measured pressure is less than the specification, reinflate to the pressure specified below. Tires must not be inflated above the recommended specification. Do not intermix tires of different types

on one aerial platform. Use only tires of type originally supplied.

SKYJACK, Page 66

February 2008

Mid Size & Full Size RT’s

Engine Powered

Tables Section 2 - Operation

Frequency

Daily

3 months or

150 hours

Yearly

Frequency

Daily

3 months or

150 hours

Yearly

Lifting Mechanism

Labels A Scissor Guards A Electrical A Sliders A Limit Switches A Maintenance Support A Hydraulic A Scissor Assembly A Hydraulic/Electrical Compartment Scissor Bumpers A

Emergency Main Power Disconnect Switch A Lift Cylinder(s) A Base Control Switches A Base Battery A Base Weldment A Manifolds A Wheel/Tire Assembly A Electrical Panel A Drive Axle A Tilt Sensor A Steer Cylinder Assembly A Hydraulic Tank (Model 9250) A Tie Rod A Hydraulic Oil (Model 9250) A Disc Brake (Models 71xx & 8xxx) A

Emergency Lowering Access Rod (If Equipped) A Pin Brakes (Model 9250) A

Hydraulic/Fuel Compartment Drive Motor A

Hydraulic Tank (Models 71xx & 8xxx) A Ladder A Hydraulic Oil (Models 71xx & 8xxx) A Outriggers A Fuel Tank A Manuals A Fuel Leaks A Function Tests

Engine Compartment Test Emergency Main Power Disconnect Switch A

Engine Control Console A Base Control Console Radiator A Test Platform Raise/Lower Switch A Muffler and Exhaust A Test Emergency Lowering (Models 71xx & 8xxx) A Engine Tray A Test Emergency Lowering (Model 9250) A Hydraulic Pump A Platform Control Console Engine Oil Level A Test Emergency Stop A Engine Air Filter A Test Enable Trigger Switch A Fuel Leaks A Test Platform Raising/Lowering A

Platform Assembly Test Steering A

Lanyard Attachment Anchors A Test Driving A AC Outlet on Platform A Test Speed Limit A Platform Control Console A Test Brakes A Powered Extension Control Console (If Equipped) A Test Horn A

Test Tilt Sensor A

60603AA-ANSI

A - Perform Visual and Daily Maintenance Inspections & Functions Test. Refer to Section 2.8 and Section 2.9 of this manual. B - Perform Scheduled Maintenance Inspection. Refer to Service & Maintenance manual. * - Maintenance must be performed only by trained and competent personnel who are familiar with mechanical procedures.

Visual and Daily Maintenance Inspections

General Maintenance

Before attempting any repair work, disconnect battery by turning emergency main power disconnect

switch to off position. Preventive maintenance is the easiest and least expensive type of maintenance.

Table 2.8 Maintenance and Inspection Schedule

Mid Size & Full Size RT’s

Use original or manufacturer-approved parts and components for aerial platform.

Engine Powered February 2008

WARNING

SKYJACK, Page 67

Section 2 - Operation Tables

P F R N

N/A P F R N/A P F R

60604AA-ANSI

Test Horn Test Tilt Sensor

Test Steering Test Driving Test Speed Limit Test Brakes

Visual and Daily Maintenance Inspections Labels Electrical Limit Switches

OPERATOR'S CHECKLIST

Each item shall be inspected using the appropriate section of the Skyjack operating manual.

DAILY

- FAIL FREQUENTL

- REPAIRED

NNUALL

- NOT APPLICABLE

Test Platform Raise/Lower Switch Test Emergency Lowering (Models 71xx & 8xxx)

Serial Number: Model: Hourmeter Reading: Operator's Name (Printed): Date: Time: Operator's Signature:

s each item is inspected, check the appropriate box.

- PASS

BI-ANNUALL

Hydraulic/Electrical Compartment

Hydraulic/Fuel Compartment

Electrical Panel Tilt Sensor Hydraulic Tank (Model 9250) Hydraulic Oil (Model 9250) Emergency Lowering Access Rod (If Equipped)

Hydraulic

Emergency Main Power Disconnect Switch Base Control Switches Battery Manifolds

Lifting Mechanism

Base

Scissor Guards Sliders Maintenance Support Scissor Assembly Scissor Bumpers

Hydraulic Tank (Models 71xx & 8xxx)

Fuel Tank Fuel Leaks

Engine Compartment

Hydraulic Oil (Models 71xx & 8xxx)

Engine Control Console Radiator Muffler and Exhaust Engine Tray Hydraulic Pump Engine Oil Level Engine Air Filter

Platform Assembly

Fuel Leaks

Lanyard Attachment Anchors AC Outlet on Platform Platform Control Console Powered Extension Control Console (If Equipped)

Drive Motor Ladder Outriggers

Manuals

Test Enable Trigger Switch Test Platform Raising/Lowering

Function Tests

Base Control Console

Test Emergency Main Power Disconnect Switch

Test Emergency Lowering (Model 9250)

Platform Control Console

Test Emergency Stop

Lift Cylinder(s)

Tie Rod Disc Brake (Models 71xx & 8xxx) Pin Brakes (Model 9250)

Base Weldment Wheel/Tire Assembly Drive Axle Steer Cylinder Assembly

Note:

Make a copy of this page or visit the Skyjack web site:

www.sk

ack.com for a printable copy.



 



 

Table 2.9 Operator’s Checklist

SKYJACK, Page 68

February 2008

Mid Size & Full Size RT’s

Engine Powered

Labels Section 2 - Operation

WARNING

1234

PSI/BAR

MANUAL

124631AA

INCH

1234

PSI/BAR

MANUAL

124631AA

INCH

126928AAZZ

126928AA

5.2 BAR

75 PSI

5.2 BAR

PROPANE

Right Side

No. Label Pictorial Description

Skyjack Logo

Large Skyjack logo - blue and red

Tape Blue/White

Skyjack pinstripe

Caution Tape Stripe

Caution stripe

Wheel Specifications

Refer to manual for wheel type, offset, pressure and torque.

Tire Pressure*

Inflate tire to indicated pressure.

*Note: Tire pressure changes with varying units.

Propane

Mid Size & Full Size RT’s Engine Powered February 2008

Indicates propane storage location.

SKYJACK, Page 69

Section 2 - Operation Labels

WARNING

1234

PSI/BAR

MANUAL

124631AA

INCH

1234

PSI/BAR

MANUAL

124631AA

INCH

126928AAZZ

126928AA

5.2 BAR

75 PSI

5.2 BAR

PROPANE

Right Side (Continued)

7 8

No. Label Pictorial Description

Liquid Propane

Use liquid propane only.

Danger - Explosive Fumes

Danger - explosive fumes. Do not smoke while refueling work platform.

Gasoline

Use gasoline only.

Diesel

Use diesel fuel only.

4x4

SKYJACK, Page 70

Product identifier - 4 wheel drive

February 2008

Mid Size & Full Size RT’s

Engine Powered

Labels Section 2 - Operation

WARNING

1234

PSI/BAR

MANUAL

124631AA

INCH

1234

PSI/BAR

MANUAL

124631AA

INCH

126928AAZZ

126928AA

5.2 BAR

75 PSI

5.2 BAR

PROPANE

Right Side (Continued)

12131415

11 12

No. Label Pictorial Description

Tape - Red/Blue/Red

Skyjack pinstripe

Model Number*

Product Identifier

*Model number will vary, may not be as shown.

“Clear”

Keep clear.

“Keep”

Keep clear.

Annual Inspection

Ensure that work platform has received annual inspection prior to operation.

Warning - Falling hazard. Hinge point.

WARNING! Falling Hazard. Make sure hinged railing is pinned.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 71

Section 2 - Operation Labels













Hydraulic/Fuel Compartment

1 3 42

No. Label Pictorial Description

Danger - Explosive Fumes

Danger - Explosive Fumes. Do not smoke while refueling work platform.

Diesel

Use diesel fuel only.

Unleaded Fuel

Use unleaded gasoline only.

No Smoking

Do not smoke near this location.

SKYJACK, Page 72

Hydraulic Oil ATF Dexron III

Replace hydraulic fluid with ATF Dexron III only.

Mid Size & Full Size RT’s

February 2008

Engine Powered

Labels Section 2 - Operation

Front Side

No. Label Pictorial Description

Caution Tape Stripe

Caution stripe

Fuel Switch Sequence

Follow procedure outlined to switch between L.P./Gasoline.

Lift and Tie Down Points

Only use these points for lifting or tying down.

Skyjack Logo

Large Skyjack logo - blue and red

Warning - Falling hazard. Hinge point.

WARNING! Falling Hazard. Make sure hinged railing is pinned.

No Step

WARNING! Do not step in this location.

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 73

Section 2 - Operation Labels

! WARNING !

123628AB

1234

I/BAR

124631AA



M



IN

1234

PSI/BAR

124631AA



M



IN

1262AA  1262AA

2 BAR

 PSI

2 BAR

Left Side

No. Label Pictorial Description

Skyjack Logo

Large Skyjack logo - blue and red

Tape Blue/White

Skyjack pinstripe

Caution Tape Stripe

SKYJACK, Page 74

Caution stripe

Wheel Specifications

Refer to manual for wheel type, offset, pressure and torque.

Tire Pressure*

Inflate tire to indicated pressure.

*Note: Tire pressure changes with varying units.

February 2008

Mid Size & Full Size RT’s

Engine Powered

Labels Section 2 - Operation

! WARNING !

123628AB

1234

I/BAR

124631AA



M



IN

1234

PSI/BAR

124631AA



M



IN

1262AA  1262AA

2 BAR

 PSI

2 BAR

Left Side (Continued)

6 7

No. Label Pictorial Description

4x4

Product identifier - 4 wheel drive

Tape - Red/Blue/Red

Skyjack pinstripe

Manual Storage Box

Indicates location of operating manual.

Model Number*

Product Identifier

Mid Size & Full Size RT’s Engine Powered February 2008

*Model number will vary, may not be as shown.

SKYJACK, Page 75

Section 2 - Operation Labels

! WARNING !

123628AB

PSI/BAR

124631AA



M



IN

1234

PSI/BAR

124631AA



M



IN

1262AA  1262AA

2 BAR

 PSI

2 BAR

Left Side (Continued)

1011

No. Label Pictorial Description

“Clear”

Keep clear.

“Keep”

Keep clear.

Warning - Falling hazard. Hinge point.

WARNING! Falling Hazard. Make sure hinged railing is pinned.

SKYJACK, Page 76

February 2008

Mid Size & Full Size RT’s

Engine Powered

Labels Section 2 - Operation

Electrical Panel and Hydraulic/Fuel Compartment

No. Label Pictorial Description

3 4

Emergency Main Power Disconnect

Emergency main power disconnect lever

Ground Circuit Breaker

Mid Size & Full Size RT’s Engine Powered February 2008

Push to reset ground circuit breaker.

Power Circuit Breaker

Push to reset power circuit breaker.

Emergency Lowering Procedure

In case of emergency, follow procedure outlined in label to lower the platform.

SKYJACK, Page 77

Section 2 - Operation Labels

Electrical Panel and Hydraulic/Fuel Compartment (Continued)

765

No. Label Pictorial Description

Raise Platform

Select to raise platform.

Lower Platform

Select to lower platform.

Winching/Towing/Pushing Procedure

SKYJACK, Page 78

Winching/towing/pushing procedure. Ensure brake is released and free-wheeling valve is open before moving the aerial platform manually.

Mid Size & Full Size RT’s

February 2008

Engine Powered

Labels Section 2 - Operation

Electrical Panel and Hydraulic/Fuel Compartment (Continued)

No. Label Pictorial Description

Relay Names - Lower (Model 71xx)*

Relay names for Model 71XX electrical panel (lower bank)

*Note: Relay names will vary with differing units

Relay Names - Upper (Model 71xx)*

Relay names for Model 71XX electrical panel (upper bank)

*Note: Relay names will vary with differing units

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 79

Section 2 - Operation Labels

Back Side

2 1

No. Label Pictorial Description

Lift and Tie Down Points

Only use these points for lifting or tying down.

Connect Platform AC Supply

Connect AC power supply here for platform accessory outlet.

Warning - Do Not Alter

Aerial platform altering warning

Horizontal Load Rating*

Apply no more than the indicated side load. Operate below indicated wind speed only.

*Rating will change over varying units.

Standards Compliance

Indicates standards to which the work platform complies.

No Jewelry

SKYJACK, Page 80

Caution. Do not wear jewelry.

Operator Checklist

Operator checklist. Perform check prior to use.

Mid Size & Full Size RT’s

February 2008

Engine Powered

Labels Section 2 - Operation











































9 10 98

Cylinder

No. Label Pictorial Description

Hazard Identification

Back Side (Continued)

Read and understand the outlined risks associated with this work platform prior to operation.

Warning - Falling hazard. Hinge point.

WARNING! Falling Hazard. Make sure hinged railing is pinned.

Caution Tape Stripe

Caution Strip

Platform Capacity*

Rated work load in each configuration is as shown. *Platform capacity varies over different aerial platforms.

Serial Plate*

Product identification and specifications

*Serial plate will vary over different aerial platforms.

Orifice Installed

Orifice installation warning

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 81

Section 2 - Operation Labels

Outrigger and Engine Control Consoles

No. Label Pictorial Description

Crushing Hazard

Danger - crushing hazard

Warning - Do Not Alter

Aerial platform altering warning

Power On/Off

Pull to turn on, push to turn off.

SKYJACK, Page 82

Choke

Select to operate choke.

Start Engine

Select to start engine.

Engine Control

Select “

February 2008

” to start, “ ” run or “ ” stop engine.

” liquid petroleum or “ ” unleaded gas.

Mid Size & Full Size RT’s

Engine Powered

Labels Section 2 - Operation

Platform Control Console

No. Label Pictorial Description

Controller Operation

Squeeze “

Operate “ ” rocker switch to steer.

Move controller forward “ to drive reverse..

Low/High Speed Range

Select “ speed (low torque).

Low/High Throttle

Select “

” trigger to enable controller.

” to drive forward or backward “ ”

” for low speed (high torque) or “ ” high

” low or “ ” high engine speeds.

Power On Indicator

Mid Size & Full Size RT’s Engine Powered February 2008

Continuous illumination indicates upper control availability.

SKYJACK, Page 83

Section 2 - Operation Labels

Platform Control Console (Continued)

9 8 7

No. Label Pictorial Description

Raise/Off/Lower Platform

Select “

“

Off/Lift/Drive

Select “

Emergency Stop

Push to disable controls.

Lift Enable

Select to enable lift mode.

” to raise the platform, “ ” to turn power off or

” to lower the platform.

” off, “ ” lift or “ ” drive mode.

SKYJACK, Page 84

Start Engine

Select to start engine.

February 2008

Mid Size & Full Size RT’s

Engine Powered

Labels Section 2 - Operation

Platform Control Console (Continued)

No. Label Pictorial Description

Choke

Select to operate choke.

Glow Plug

Select to activate glow plugs.

Horn

Select to sound horn.

Low/High Torque

Select “ torque).

Controller Connector Pinout

” low speed (high torque) or “ ” high speed (low

Controller connector pinout

Mid Size & Full Size RT’s Engine Powered February 2008

SKYJACK, Page 85

Section 2 - Operation Labels

Auxiliary Control Consoles

1 2

No. Label Pictorial Description

Powered Extension Platform Enable

Select to enable powered extension platform controls.

Powered Extension Platform Extend/Retract

Select “ extension platform.

“ to extend or “ “ to retract powered

Outrigger Controls with Generator

Select “

Indicates leveling system status:

Automatic Outrigger Controls

Select “ outriggers with automatic leveling.

Select “

” to retract or “ “ to extend for each outrigger.

” to enable or “ ” disable generator.

Off: The outriggers are fully retracted.

Flashing Rapidly: The outriggers are extending but the

platform is not level.

Flashing: The outriggers are extended but the platform is

not yet level.

Solid: The outriggers are extended and the platform is

level.

” to retract all outriggers or “ ” to extend all

” to enable manual or automatic outrigger controls.

SKYJACK, Page 86

February 2008

Mid Size & Full Size RT’s

Engine Powered

California Proposition 65

WARNING

Engine exhaust and some of its constituents are known to the State of

California to cause cancer, birth defects, and other reproductive harm.

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer, birth

defects, and other reproductive harm.

WASH HANDS AFTER HANDLING.

MOBILE ELEVATING PLATFORMS

www.skyjack.com

Skyjack 7127, 7135, 8850, 8831, 8841 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

OPERATOR'S CHECKLIST