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Oshkosh Corporation JLG G6-42A Repair Instructions

Axle mount weldment

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An Oshkosh Corporation Company
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 drilling drain holes in the front and
rear axle mount plates, repairing of weld cracks that
exist on the rear axle mount.
• After inspection, if only weld cracks and NO plate
deflection is found, complete the Axle Mount
Weldment Repair Instructions.
• After inspection, if weld cracks AND plate deflection
are found on the rear axle weldment, kit number
100112699 will be required.
NOTICE
Reference the Service Manual for safe and proper
disassembly/assembly procedures.
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.
NOTICE
Failure to comply with the above weld repair guidelines
may result in component damage.
Axle Mount Weldment
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
31212011
G6-42A
Repair Instructions
1

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Summary of Contents for Oshkosh Corporation JLG G6-42A

  • Page 1 G6-42A Axle Mount Weldment An Oshkosh Corporation Company Repair Instructions GENERAL GUIDELINES TOOLS & EQUIPMENT REQUIRED • This repair procedure provides repair information for 1. Stands and lifting equipment capable of lifting/ a specific discrepancy. It is the responsibility of the...
  • Page 2: Repair Procedure

    G6-42A Axle Mount Weldment Repair Instructions REPAIR PROCEDURE 1.5.2 Rear Axle Mounting Plate Drain 1. Remove components as required to facilitate repair. 1.5.1 Front Axle Mounting Plate Drain Refer to the machine Service Manual for proper 1. Remove any attachment from the machine. disassembly procedures.
  • Page 3 G6-42A Axle Mount Weldment Repair Instructions 4. Repair the cracks: a. Use air carbon-arc equipment or a portable power grinder to remove area(s) of weld discrepancy. Remove the weld 1 in (25,4 mm) beyond end(s) of weld discrepancy, tapering to a depth of 0 in (0 mm).
  • Page 4 G6-42A Axle Mount Weldment Repair Instructions 1.5.4 Front Axle Plate Drain Hole Locations FRONT OF MACHINE MY5280 A. 11.824 in ± 0.063 in (300,3 ± 1,6 mm) B. 5.912 in ± 0.063 in (150,2 ± 1,6 mm) C. 5.250 in ± 0.063 in (133,3 ± 1,6 mm) D.
  • Page 5 G6-42A Axle Mount Weldment Repair Instructions 1.5.5 Rear Axle Plate Drain Hole Locations FRONT OF MACHINE MY4400 A. 11.406 in ± 0.063 in (289,7 ± 1,6 mm) B. 3.125 in ± 0.063 in (79,375 ± 1,6 mm) C. 8.835 in ± 0.063 in (224,4 ± 1,6 mm) D.
  • Page 6 G6-42A Axle Mount Weldment Repair Instructions This Page Intentionally Left Blank 31212011...