Skyjack SJ85AJ User manual

OPERATING
MANUAL
SJ85AJ
ARTICULATING BOOMS
208932AEA
November 2018
AS

SJ85AJ: 95 400 001 & Above
This manual is based on Serial Number(s):
Please refer to the website (www.skyjack.com) for
other Serial Numbers, most recent Technical Manuals
and USB software.
Original instructions in English.
Parts (North America)
Toll Free: 1-800-965-4626
Toll Free Fax: [phone]
E-mail: [email protected]
Skyjack Australia Pty Ltd.
Unit 1, 35 Honeycomb Drive
Eastern Creek
New South Wales 2766
Australia
Tel: [phone]
Fax: [phone]
Skyjack Brasil
Indaiatuba, SP, Brasil 13347-653
Tel: [phone]
Alameda Júpiter, 710
Loteamento American Park Empresarial
Skyjack Service Center
3451 Swenson Ave. St. Charles,
Phone: [phone]
Toll Free: 1-800-275-9522
Fax: [phone]
Email: [email protected]
Illinois, 60174 USA
Parts & Service (Europe)
Unit 1 Maes Y Clawdd
Oswestry, Shropshire SY10 8NN UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Maesbury Road Industrial Estate

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The Safety Alert Symbol identies important safety
messages on MEWPs, 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
DANGER indicates an imminently hazardous
situation which, if not avoided, will result in death
or serious injury.
WARNING
WARNING indicates a potentially hazardous
situation which, if not avoided, could result in death
or serious injury.
CAUTION
CAUTION indicates a potentially hazardous
situation which, if not avoided, may result in minor
or moderate injury. It may also be used to alert
against unsafe practices.
IMPORTANT
IMPORTANT indicates a procedure essential for
safe operation and which, if not followed, may
result in a malfunction or damage to the MEWP.
Safety Red
indicates
DANGER.
Safety Orange
indicates
WARNING.
Safety Yellow
indicates
CAUTION.
Safety Green
indicates
Emergency
Lowering.
Safety Blue
indicates
Safety
Information.
Figure 01 Label Legend
THIS SAFETY ALERT SYMBOL MEANS ATTENTION!
BE ALERT! YOUR SAFETY IS INVOLVED.

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Notes

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Section 1 – About Your Mobile Elevating Work Platform (MEWP) . . . . . . . . . . . . . . . . . . . . 9
1.1 Read and Heed ....................................................................9
1.1-1 Mobile Elevating Work Platform (MEWP) Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1-2 Purpose of Equipment ...........................................................9
1.1-3 Use of Equipment ...............................................................9
1.1-4 Manual .......................................................................9
1.1-5 Operator ......................................................................9
1.1-6 Service Policy and Warranty .......................................................9
1.1-7 Ownership of Machine ...........................................................9
1.1-8 Optional Accessories ............................................................9
1.1-9 Scope of this Manual ............................................................9
1.2 Major Assemblies .................................................................10
1.2-1 Base ........................................................................10
1.2-2 Turret ........................................................................10
1.2-3 Boom Assembly ...............................................................10
1.2-4 Platform ......................................................................10
1.3 Serial Number Nameplate ...........................................................12
1.4 Responsibility for Maintenance ......................................................12
1.4-1 Operator’s Responsibility for Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4-2 Maintenance and Inspection Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4-3 Owner’s Inspections ............................................................12
Section 2 – Operator Safety .................................................13
2.1 Electrocution Hazard ...............................................................13
2.2 Safety Precautions ................................................................14
2.3 Fall Protection ....................................................................16
2.4 Jobsite Inspection .................................................................17
Section 3 – Familiarization ..................................................19
3.1 Component Identication ...........................................................20
3.2 Manual Storage Box ...............................................................21
3.3 Control Functions .................................................................21
3.3-1 Main Power Disconnect Switch ...................................................21
3.3-2 Footswitch ....................................................................21
3.3-3 Base Control Console ...........................................................22
3.3-4 Platform Control Console ........................................................24
3.4 Features and Devices ..............................................................27
3.4-1 Driving Speed .................................................................28
Table of Contents

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3.4-2 Driving Direction ...............................................................28
3.4-3 Tilt Switch ....................................................................28
3.4-4 Function Restrictions when Tilted ..................................................28
3.4-5 Platform Load Sensing System ....................................................28
3.4-6 Overload Status ................................................................29
3.4-7 Brake System .................................................................30
3.4-8 Secondary Guarding Electrical (SGE) ...............................................30
3.4-9 Drive Bypass Valve .............................................................31
3.4-10 Differential Lock Switch .........................................................31
3.4-11 Turret Transportation Lock .......................................................31
3.4-12 All Motion Alarm ...............................................................31
3.5 Optional Equipment and Attachments .................................................32
3.5-1 AC Outlet on Platform (If Equipped) ................................................32
3.5-2 Work Light (If Equipped) .........................................................32
3.5-3 Flashing Amber Light (If Equipped) ................................................32
3.6 Emergency Lowering Procedure .....................................................33
3.7 Chassis Tilt Recovery ..............................................................34
3.7-1 Platform Uphill .................................................................34
3.7-2 Platform Downhill ..............................................................34
Section 4 – Pre-operation ..................................................35
4.1 Operator’s Responsibility ...........................................................35
4.2 Visual & Daily Maintenance Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.2-1 Labels .......................................................................36
4.2-2 Electrical .....................................................................36
4.2-3 Limit Switches .................................................................36
4.2-4 Hydraulic .....................................................................36
4.2-5 Engine Compartment ...........................................................37
4.2-6 Control Compartment ...........................................................39
4.2-7 Base ........................................................................40
4.2-8 Platform Assembly .............................................................42
4.2-9 Boom Assembly ...............................................................43
4.2-10 Optional Equipment/Attachments ..................................................44
4.3 Function Tests ....................................................................45
4.3-1 Test Main Power Disconnect Switch ................................................45
4.3-2 Base Control Console ...........................................................45
4.3-3 Test Base Emergency Stop Button and Base Emergency Stop Light . . . . . . . . . . . . . . . . . . . . . . 45
4.3-4 Test Start/Function Enable/Emergency Power Switch and All Boom and Platform Functions . . . . 46
4.3-5 Test Platform Self-leveling .......................................................46
4.3-6 Test Platform Capacity Zone Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.3-7 Test Emergency Power ..........................................................47
4.3-8 Test Off/Base/Platform Switch .....................................................48
4.3-9 Platform Control Console ........................................................49

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4.3-10 Test Platform Emergency Stop Button and Platform Emergency Stop Light . . . . . . . . . . . . . . . . . 49
4.3-11 Verify Load Sensing Module Self-Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3-12 Test Footswitch and All Boom and Platform Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3-13 Test Platform Capacity Zone Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3-14 Test Secondary Guarding Electrical (SGE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3-15 Test Emergency Power ..........................................................52
4.3-16 Test Manual Platform Leveling ....................................................52
4.3-17 Test Steering ..................................................................53
4.3-18 Test Driving Function ............................................................53
4.3-19 Test Brakes ...................................................................53
4.3-20 Test Driving Speed .............................................................54
4.3-21 Test Horn .....................................................................54
4.3-22 Test Differential Lock Switch ......................................................54
4.3-23 Test Oscillating Axles ...........................................................55
4.4 Operator’s Checklist ...............................................................56
Section 5 – Operation ......................................................57
5.1 Start Operation ...................................................................58
5.1-1 To Activate Base Control Console .................................................58
5.1-2 To Rotate Platform Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1-3 To Rotate Turret Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1-4 To Move Jib Up and Down Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1-5 To Move Riser Up and Down Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1-6 To Raise or Lower Main Boom Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1-7 To Extend or Retract Fly Boom Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.1-8 To Level Platform Using Base Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.1-9 To Operate Using Emergency Power Switch at Base Control Console . . . . . . . . . . . . . . . . . . . . . 59
5.1-10 To Drive Forward or Reverse Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-11 To Steer Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-12 To Move Jib Up and Down Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-13 To Move Riser Up and Down Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-14 To Extend or Retract Fly Boom Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-15 To Level Platform Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-16 To Rotate Platform Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-17 To Raise or Lower Main Boom Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1-18 To Sound Horn ................................................................61
5.1-19 To Rotate Turret Using Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.1-20 To Operate Using Emergency Power Switch at Platform Control Console . . . . . . . . . . . . . . . . . . 61
5.1-21 To Engage Differential Lock Switch ................................................61
5.1-22 To Disengage Differential Lock Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.1-23 Shutdown Procedure ...........................................................61
5.1-24 Hydraulic Generator (If Equipped) .................................................61

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Section 6 – Additional Procedures ...........................................63
6.1 Winching and Towing Procedures ....................................................63
6.1-1 To Release Brakes Manually ......................................................64
6.2 Refueling Procedure ...............................................................65
6.2-1 Refuelling (Gasoline or Diesel) ....................................................65
6.3 Loading/Unloading ................................................................66
6.3-1 Loading and Tie-down ..........................................................66
6.3-2 Locking the Turret ..............................................................67
6.3-3 Lifting .......................................................................67
Section 7 – Technical Diagrams &
Specications ............................................................69
7.1 Technical Diagrams ................................................................70
7.2 Standard and Optional Features ......................................................72
7.3 Owner’s Annual Inspection Record ...................................................73
7.4 Specications and Features-A .......................................................74
7.5 Specications and Features-B .......................................................75
7.6 Tire/Wheel Specications ...........................................................76
7.7 Maximum Platform Capacities .......................................................76
7.8 Floor Loading Pressure .............................................................76
7.8-1 Locally Concentrated Pressure (LCP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
7.8-2 Overall Uniform Pressure (OUP) ...................................................77
Section 8 – Labels ........................................................79
8.1 SJ85AJ ..........................................................................80
Section 9 – Skyjack Features ...............................................103

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Section 1 – About Your Mobile Elevating
Work Platform (MEWP)
1.1 Read and Heed
SKYJACK is continuously improving and expanding
product features on its equipment, therefore,
specications and dimensions are subject to change
without notice.
1.1-1 Mobile Elevating Work Platform
(MEWP) Denition
A mobile device that has an adjustable position
platform supported from ground level by a structure.
1.1-2 Purpose of Equipment
The SKYJACK Articulating Boom Series (Model
SJ 85AJ) MEWP is designed to transport and raise
personnel, tools and materials to overhead work
areas.
1.1-3 Use of Equipment
The MEWP is a highly maneuverable, mobile work
station. Work platform elevation and elevated driving
must only be done on a rm, level surface. It can be
driven over uneven terrain only when the platform is
fully lowered.
1.1-4 Manual
The operating manual is considered a fundamental
part of the MEWP. 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 MEWP at all times.
1.1-5 Operator
The operator must read and completely understand
this operating manual, the safety panel label located
on the platform, the limitations, operating procedures,
operator’s responsibility for maintenance and all other
warnings and instructions in this manual and on the
MEWP.
Compare the labels on the MEWP with the labels
found within this manual. If any labels are damaged or
missing, replace them immediately.
Only trained and authorized personnel shall be
permitted to operate a MEWP.
The operator must be familiar with the employer’s
work rules and related government regulations and
be able to demonstrate the ability to understand
and operate this make and model of MEWP in the
presence of a qualied/competent person.
1.1-6 Service Policy and Warranty
SKYJACK warrants each new product to be free
of defective parts and workmanship for the rst 2
years or 3000 hours, whichever occurs rst. Any
defective part will be replaced or repaired by your
local SKYJACK dealer at no charge for parts or labor.
In addition, all products have a 5 year structural
warranty. Contact the SKYJACK Service Department
for warranty statement extensions or exclusions.
1.1-7 Ownership of Machine
Notify Skyjack of machine ownership. If you have sold
or transferred any machine, promptly notify Skyjack of
new owner’s contact information.
1.1-8 Optional Accessories
The SKYJACK MEWP is designed to accept a variety
of optional accessories. These are listed under
7.2 Standard and Optional Features. Operating
instructions for these options (if equipped) are located
in Section 5 – Operation of this manual.
For non-standard components or systems, contact
the SKYJACK Service Department at:
: 61 (0) 28786 3200
: 61 (0) 28786 3222
Include the model and serial number for each
applicable MEWP.
1.1-9 Scope of this Manual
1. This MEWP meets requirements of the
Guideline published by the National Regulators’
Committee on High Risk Plant dated 27 May
2010.
2. Operators are required to conform to national,
state or territorial/provincial and local health and
safety regulations applicable to the operation of
this MEWP.

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Section 1 – About Your Mobile Elevating Work Platform (MEWP) Major Assemblies
1.2 Major Assemblies
The MEWP consists of four major assemblies: the
base, turret, boom assembly and platform. Refer to
Figure 02.
1.2-1 Base
The base is a rigid one-piece weldment. The rear
axle is hydraulic motor-driven and has spring-
applied, hydraulically released brakes. The front axle
is steerable by a hydraulic cylinder and has spring-
applied, hydraulically released brakes. The rear axle is
coupled to the front axle by a drive shaft.
1.2-2 Turret
The turret rotates 360 degrees continuously. Upon
the turret are two compartments. One compartment
contains the engine, hydraulic pumps, battery and
swing drive. The other compartment contains the
base control console, main hydraulic manifold,
function valves, hydraulic and fuel tanks.
1.2-3 Boom Assembly
The boom assembly consists of the riser, telescoping
y and main boom assembly. The riser is mounted
on the turret with the main boom attached to the
riser. The riser mechanism uses two double-acting
hydraulic cylinders with holding valves to control
vertical movement. The SJ85AJ model is equipped
with a jib, controlled by a double-acting hydraulic
cylinder.
1.2-4 Platform
The platform is constructed of a skid-resistant deck
surface allowing visibility through the deck and a
high tubular steel railing system with mid rails and
toe boards. The platform can be entered through a
tri-entry drop bar or an optional swing gate at the
side of the railing system. The platform can be rotated
in either direction. An AC GFI outlet is also located on
the platform.