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31200680
1.1
GENERAL GUIDELINES
•
This repair procedure provides repair information for
a specific discrepancy. It is the responsibility of the
entity performing the repairs to determine if the
discrepancy can be corrected by this procedure. This
repair is only for the replacement of the rear axle
weldment.
•
After inspection, if only weld cracks and NO plate
deflection is found, refer to instructions 31212011.
•
After inspection, if weld cracks AND plate deflection
is found, complete the Rear Axle Block Weldment
Replacement Instructions.
1.2
WELD REPAIR GUIDELINES
•
All welding must be in accordance with ANSI/AWS
D1.1 Standard.
•
Disconnect the battery of the machine being repaired
prior to welding.
•
Ground only to the component being welded. Do not
ground to any adjacent component or allow pins,
wear pads, wire ropes, bearings, gears, seals,
valves, electrical wiring, or hoses to be between the
grounding position and the area to be welded.
1.3
TOOLS & EQUIPMENT REQUIRED
1. Stands and lifting equipment capable of lifting/
supporting the affected components
2. Hand-held power grinder
3. Air carbon-arc equipment
4. Electric welding equipment
5. AWS 70 grade, low hydrogen rod or wire
6. Standard welder tools
7. Standard mechanic tools
8. Paint
1.4
PERSONNEL REQUIRED
1. Qualified
JLG
Equipment Mechanic
2. Certified Welder
1.5
PARTS LIST
1.6
REAR AXLE BLOCK WELDMENT
REPLACEMENT
1. Remove any attachment from the machine.
2. Park the machine on a firm, level surface with the
machine level, retract and level the boom. Place the
transmission control lever in the (N)
NEUTRAL position and engage the
parking brake. Shut the engine OFF.
3. Place a Do Not Operate Tag on both the
ignition key switch and the steering
wheel, stating that the machine should
not be operated.
4. Open the engine cover. Allow system
fluids to cool.
5. Properly disconnect the battery.
6. Properly support the frame to alleviate
pressure or stress at the affected repair
area.
7.
Remove components as required to
facilitate repair. Refer to the machine
Service Manual for proper disassembly
procedures.
NOTICE
Reference the Service Manual for safe and proper
disassembly/assembly procedures.
NOTICE
Failure to comply with the above weld repair guidelines
may result in component damage.
P/N
Qty
Description
91476013
1
Rear Axle Weldment Block
G6-42A
Rear Axle Block Weldment
Replacement Instructions
For Kit 1001126991
B
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14
31200680
An Oshkosh Corporation Company
