Skyjack SJ 3215 User manual

OPERATION
MANUAL
SJ3215, SJ3219,
SJ3220, SJ3226,
SJ4726, SJ4732,
SJ4740
DC ELECTRIC SCISSORS
216380ACA
February 2020
ANSI/CSA

This manual is for MEWPs with serial numbers:
SJ3215: A100 000 001 & Above
SJ3219: A100 000 001 & Above
SJ3220: A101 000 001 & Above
SJ3226: A101 000 001 & Above
SJ4726: A102 000 001 & Above
SJ4732: A102 000 001 & Above
SJ4740: A103 000 001 & Above
Please refer to the website (www.skyjack.com)
for contact information, other Serial Numbers,
most recent Technical Manuals, and USB
software.
Original instructions in English.

SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740 216380ACA
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The Safety Alert Symbol identifies 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.
Red
DANGER.
Orange
WARNING.
Yellow
CAUTION.
Green
Emergency-
lowering
procedure.
Blue
Safety
information.
THIS SAFETY ALERT SYMBOL MEANS ATTENTION!
BE ALERT! YOUR SAFETY IS INVOLVED.

216380ACA SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740
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Notes

SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740 216380ACA
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Section 1 – About this 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 Operation 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 Primary assemblies ................................................................10
1.3 Serial number nameplate ...........................................................11
1.4 Maintenance responsibility ..........................................................12
1.4-1 Operator .....................................................................12
1.4-2 Maintenance and inspection schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4-3 Owner .......................................................................12
Section 2 – General Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Electrocution hazards ..............................................................13
2.1-1 Minimum distance from electrical conductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Safety instructions .................................................................14
2.3 Fall-protection ....................................................................17
2.4 Worksite inspection ................................................................17
Section 3 – Familiarization ..................................................19
3.1 Overview of the MEWP .............................................................20
3.2 Manual storage box ................................................................21
3.3 Control functions ..................................................................21
3.3-1 Main power disconnect switch ....................................................21
3.3-2 Base control console ...........................................................21
3.3-3 Platform control console .........................................................22
3.4 Features and Devices ..............................................................23
3.4-1 Lowered travel position and elevated travel position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4-2 Drive speed ...................................................................23
3.4-3 Tilt switch ....................................................................23
3.4-4 Brake release system ...........................................................24
3.4-5 Freewheeling valve .............................................................24
Table of Contents

216380ACA SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740
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3.4-6 Emergency-lowering system ......................................................25
3.4-7 Fall-protection anchorage ........................................................25
3.4-8 Platform load-sensing system .....................................................26
3.4-9 Pothole protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4-10 Maintenance support(s) .........................................................27
3.5 General components ...............................................................27
3.5-1 AC power socket on the platform ..................................................27
3.5-2 Battery charger ................................................................27
3.5-3 Folding-guardrail system ........................................................28
3.5-4 Extension platform ..............................................................28
3.5-5 Motion alarm ..................................................................28
3.5-6 Skycoded™ display panel ........................................................28
3.5-7 Dual height control console (SJ3226 and SJ4740) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.6 Optional equipment ................................................................29
3.6-1 Power deck control console (SJ3220 and SJ4726) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.6-2 1500 W inverter ................................................................30
3.6-3 Secondary Guarding Lift Enable (SGLE) push-button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.6-4 Elevate™ telematics - access control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Section 4 – Inspections Before Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1 Operator’s Responsibility ...........................................................33
4.2 Visual and daily maintenance inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
4.2-1 Labels .......................................................................34
4.2-2 Pothole protection limit switches ..................................................34
4.2-3 Electrical .....................................................................34
4.2-4 Hydraulic .....................................................................34
4.2-5 Wheel/tire assembly ............................................................35
4.2-6 Entrance side .................................................................36
4.2-7 Battery tray side ...............................................................37
4.2-8 Extension side .................................................................38
4.2-9 Hydraulic and electric tray side ...................................................39
4.2-10 Platform assembly ..............................................................40
4.2-11 Lift mechanism ................................................................41
4.3 Function Tests ....................................................................42
4.3-1 Do a test of the main power disconnect switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3-2 Do a test of the control module and load sensing module self-check . . . . . . . . . . . . . . . . . . . . . . 42
4.3-3 Do a test of the emergency-stop button on the base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3-4 Do a test of the off/platform/base key switch ........................................43
4.3-5 Do a test of the lower/neutral/raise switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.3-6 Do a test of the emergency-lowering function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.3-7 Do a test of the freewheeling function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.3-8 Do a test of the emergency-stop button on the platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.3-9 Do a test of the function-enable switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740 216380ACA
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4.3-10 Do a test of the steer function .....................................................45
4.3-11 Do a test of the drive function .....................................................45
4.3-12 Do a test of the anti-tiedown function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.3-13 Do a test of the brakes ..........................................................46
4.3-14 Do a test of the platform raise and lower functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.3-15 Do a test of the horn ............................................................46
4.3-16 Do a test of the pothole protection device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.3-17 Do a test of the elevated travel speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.3-18 Do a test of the dual height control console (SJ3226 and SJ4740) . . . . . . . . . . . . . . . . . . . . . . . . 48
4.3-19 Do a test of the power deck control console (optional equipment for SJ3220 and SJ4726). . . . . 49
4.3-20 Do a test of the SGLE switch (optional equipment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3-21 Do a test of the flashing light (optional equipment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.4 Operator’s Checklist ...............................................................51
Section 5 – Operation ......................................................53
5.1 Energize the base control console ....................................................53
5.2 Raise or lower the platform with the base control console. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
5.3 Energize the platform control console .................................................54
5.4 Raise or lower the platform with the platform control console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5.5 Drive forward or rearward ...........................................................55
5.6 Steer ............................................................................55
5.7 Select the level-drive or inclined-drive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5.8 Extend/retract the extension platform .................................................56
5.8-1 Extend/retract the extension platform manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.8-2 Extend/retract the extension platform with the power deck (optional equipment for SJ3220 and
SJ4726) ......................................................................56
5.9 Electrical inverter (optional equipment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
5.10 Raise and lower with the SGLE platform control console (optional equipment) . . . . . . . . . . . . . . . 57
5.11 MEWP shutdown ..................................................................57
Section 6 – Procedures ....................................................59
6.1 Use the emergency-lowering function .................................................59
6.2 Open the freewheeling valve ........................................................60
6.3 Release the brakes manually ........................................................60
6.4 Winch and tow the MEWP ...........................................................61
6.5 Use the platform control console from the ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
6.5-1 Disconnect and remove the platform control console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.5-2 Operate the MEWP from the ground ...............................................62
6.6 Move the MEWP for transport ........................................................64
6.6-1 Hoist the MEWP ...............................................................64
6.6-2 Drive and tie-down the MEWP ....................................................65
6.7 Charge the Battery ................................................................65
6.8 Use the Maintenance Support(s) .....................................................67
6.8-1 Deploy the maintenance support(s) ................................................67

216380ACA SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740
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6.8-2 Store the maintenance support(s) .................................................68
6.9 Fold the guardrails ................................................................68
6.9-1 Fold the guardrail system down (SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732) . . . . . . . . 69
6.9-2 Fold the guardrail system down (SJ4740) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.9-3 Unfold the guardrails (SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732) . . . . . . . . . . . . . . . . . 75
6.9-4 Unfold the guardrails (SJ4740) ....................................................77
6.10 Move the MEWP through a doorway ..................................................78
Section 7 – Specifications ..................................................81
7.1 Standard and optional equipment ....................................................81
7.2 Owner’s Annual Inspection Record ...................................................82
7.3 Specifications ....................................................................83
7.4 Environment ......................................................................84
7.5 Maximum platform capacities (evenly distributed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.6 Floor loading pressure .............................................................86
Section 8 – Labels ........................................................87
8.1 Base control console labels .........................................................88
8.2 Platform control console labels ......................................................89
8.3 Dual height control console label (SJ3226 and SJ4740) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
8.4 Power deck control console labels (SJ3220 and SJ4726) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
8.5 Labels ...........................................................................92
8.5-1 Rear .........................................................................92
8.5-2 Left side .....................................................................97
8.5-3 Platform .....................................................................100
8.5-4 Front .......................................................................102
8.5-5 Scissor assembly - rear .........................................................102
8.5-6 Right side ...................................................................105
8.5-7 Battery tray ..................................................................108
8.5-8 Hydraulic tray ................................................................108
8.5-9 Skycoded™ display panel .......................................................109
8.5-10 Top view ....................................................................110
Section 9 – Unique Skyjack Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740 216380ACA
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Section 1 – About this Mobile Elevating
Work Platform (MEWP)
1.1 Read and Heed
Skyjack is continuously improving and expanding
product features on its equipment; therefore,
specifications and dimensions are subject to change
without notice.
1.1-1 Mobile Elevating Work Platform
(MEWP) definition
A mobile machine intended for moving persons, tools,
and material to working positions, consisting of a work
platform with controls, an extending structure, and a
chassis.
1.1-2 Purpose of equipment
The Skyjack SJ DC Electric Scissor lifts are designed
to move personnel, tools, and materials to working
positions.
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 firm, level surface.
1.1-4 Operation manual
The operation manual is an important part of the
MEWP. It is important to always keep a copy of this
manual in the weather-resistant manual storage box of
the MEWP. The manual must be in good condition.
1.1-5 Operator
The operator must read and completely understand
this operation 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.
Before you operate the MEWP, make sure you read
and completely understand this information:
1. The full contents of the operation manual,
including the MEWP limitations and the
responsibilities of the operator for the operation,
applicable maintenance and safety instructions.
2. The safety panel label on the platform, the labels
on the MEWP and the attachments.
Compare the labels on the MEWP with the labels in
this manual. Immediately replace any labels that are
damaged or missing.
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.
1.1-6 Service policy and warranty
Skyjack warrants each new product to be free of
defective parts and workmanship for the first 2 years
or 3000 hours, whichever occurs first. 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 MEWP ownership. If you sell or
transfer the ownership of a MEWP, promptly notify
Skyjack of the new owner’s contact information.
Skyjack needs this information to inform the owner of
any updates or additional activities that are necessary
to keep the machine in proper working condition.
1.1-8 Optional Accessories
This MEWP is designed to accept a variety of optional
accessories. Refer to Section 3.6 for a list of the
optional accessories. Operating instructions for these
options are located in Section 5 of this manual.
For components or systems that are not standard,
speak to the Skyjack Service Department. Give the
model and serial number for each applicable MEWP.
1.1-9 Scope of this Manual
1. This manual applies to the ANSI/CSA version of
the SJ DC Electric Scissors series. For a list of
applicable models, refer to Section 7.3.
▪Equipment identified with ANSI meets the ANSI
SAIA-A92.20-2018 standard.
▪Equipment identified with CSA meets the CSA
B354.6:2017 standard.

216380ACA SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740
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Section 1 – About this Mobile Elevating Work Platform (MEWP) Primary assemblies
1.2 Primary assemblies
The MEWP has these primary assemblies:
1. Base
2. Lift mechanism
3. Platform.
1 Base: The base is an assembly consisting of
these components:
▪A tray, which contains the hydraulic and
electrical components.
▪A tray, which contains:
▪For models SJ3215, SJ3219, SJ3220,
SJ3226, SJ4726, and SJ4732: four 6 V
batteries and a charger. The charger for
models SJ3215 and SJ3219 is located at the
rear of the base.
▪For model SJ4740: four 12 V batteries and a
charger.
▪The front wheels are steerable by a hydraulic
cylinder.
For models SJ3215, SJ3219, and SJ4740:
the front wheels are driven by two hydraulic
motors.
For models SJ3220, SJ3226, SJ4726, and
SJ4732: the front wheels are non-driven.
▪The rear wheels have spring-applied,
hydraulically-released brakes.
For models SJ3215, SJ3219, and SJ4740: The
rear wheels are non-driven.
For models SJ3220, SJ3226, SJ4726, and
SJ4732: The rear wheels are driven by two
hydraulic motors.
2 Lift mechanism: The lift mechanism is a scissor-
type assembly made of formed steel or tube
sections. Single-acting hydraulic-lift cylinders
with holding valves move the scissor assembly
and the platform up and down.
3 Platform: The platform has these parts.
▪Tubular support frame.
▪Slip-resistant “diamond plate” deck surface.
▪Hinged tubular guardrails, with mid-rails, and
toe boards.
▪You can enter and exit the platform from the
rear through a spring-returned gate with a
latch.
▪Front extension platform.
▪AC power socket.
3
3
22
1 1
Models SJ3215, SJ3219 Models SJ3220, SJ3226, SJ4726, SJ4732, SJ4740