Primary Assemblies - Skyjack SJ3215 Operation Manual

Section 1 – About this Mobile Elevating Work Platform (MEWP)
Models SJ3215, SJ3219

1.2 Primary assemblies

The MEWP has these primary assemblies:
1. Base
2. Lift mechanism
3. Platform.
Base: The base is an assembly consisting of
1
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.
216380ACA
10
3
2
1
Models SJ3220, SJ3226, SJ4726, SJ4732, SJ4740
Lift mechanism: The lift mechanism is a scissor-
2
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.
Platform: The platform has these parts.
3
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.
▪
SJ3215, SJ3219, SJ3220, SJ3226, SJ4726, SJ4732, SJ4740
Primary assemblies
3
2
1