Westward Operating Instructions and Parts Manual
Manufactured for Grainger International, Inc.,
Lake Forest, IL 60045 U.S.A.
Repair Parts List
Number
Description
Part No.
Quantity
1
Leg Assy
G360-20000-000
2
2
Bolt Set
G360-90030-K04
1
3
Caster, 3"
G360-90030-K02
2
4
Caster with brake
G360-90030-K01
2
5
Socket Head Bolt
5105-08015-000
1
6
Tilt Screw Assy
4200-03500-000
2
7
Saddle Head Assy
G360-40000-000
1
8
Screw Assy
A070-90038-K02
2
9
Vent Screw Assy
G360-90009-K01
1
10
Handle Assy
G390-20000-000
1
11
Release Valve Pedal
G390-10005-000 1 (5M466B Qty 2)
12
Pin
5405-07027-000 1 (5M466B Qty 2)
13
Retaining Pin
5405-02018-000 1 (5M466B Qty 2)
14
Hardware Kit
G390-30000-000
1
15
Coupler, Male (5M466B)
G831-00002-000
1
16
Air Hose (5M466B)
G360-10003-000
1
17
Spring (5M466B)
G360-10002-000
1
18
Hose Connector, Elbow (5M466B)
G360-16000-000
2
19
Air Motor (5M466B)
G360-17000-000
1
20
Copper Washer (5M466B)
5308-00095-000
1
21
Nylon Strap Assy
G390-41000-000
1
*
Repair Kit, Hyd Unit (5ML72A, incl parts a - v)
G3601S-111
**
Repair Kit, Hyd Unit (5M466B, incl parts a - v)
G3600S-130
5ML72A and 5M466B
5
Troubleshooting Chart
Symptom
Possible Cause
Corrective Action
Jack will not lift load
• Release valve not tightly closed
• Overload condition
* Supply air pressure too low
• Ensure release valve tightly closed
• Remedy overload condition
• Adjust source air to recommended pressure
Jack will lift, but not maintain pressure
• Release valve not tightly closed
• Overload condition
• Hydraulic unit malfunctioning
• Ensure release valve tightly closed
• Remedy overload condition
• Replace unit
Jack will not lower after unloading
• Reservoir overfilled
• Ram damaged
• Drain fluid to proper level
• Clean and lubricate moving parts
Poor lift performance
• Fluid level low
• Air trapped in system
• Ensure proper fluid level
• With ram fully retracted, remove filler plug to
vent pressurized air, reinstall oil filler plug
Will not lift to full height
Fluid level low
Ensure proper fluid level
Westward
®
Hydraulic High Lift
Transmission Jacks
