MAINTENANCE
Maintenance Section 5-8FB42 08/01
© 2004 Alamo Group Inc.
MAINTENANCE
GEARBOX SERVICE INSTRUCTIONS
GEARBOX DISASSEMBLY (Figure 8)
1. Remove 6 capscrews (Ref.#16) from input shaft bearing housing (Ref. #13).
2. Tap around circumference of bearing housing (Ref. #13) to loosen housing and shims. Then (Ref. #9) pull
complete shaft and housing assembly (See Fig. 8) out of main housing.
3. Remove 4 capscrews (Ref #18), break gasket loose, and then remove the bearing retainer cap (Ref #2).
4. Output shaft assembly must be removed from main housing by driving or pulling shaft out bottom end.
NOTE: Once lower bearing is out of housing the complete assembly will drop down until top bearing engages
lower bearing bore. To complete removal of output shaft assembly it is necessary to keep shaft aligned on
center line of housing when removing top bearing out bottom end. Normally the simplest method of removing
the output shaft assembly is to attach a slide hammer puller to the shaft and use that to pull the shaft out.
5. The gearbox is now disassembled into four (4) sub-assemblies:
1. Input shaft assembly
2. Output shaft assembly
3. Lower bearing retainer assembly
4. Main housing assembly
FIGURE 8
1 Seal Output Shaft
2 Cap, Bearing Retainer, (Output)
3 Gasket, Output, Cap
4 Bearing, Ball
5 Shaft, (Output Pinion)
6 Spacer, Bearing, (Output)
7 Snap Ring
8 Bearing, (Input Rear)
9 Shaft, (Input)
10 Gear (Input)
11 Snap Ring
12 Shim, Side Housing
13 Housing, Side or Input
14 Seal, Input
15 Housing, Main
16 Bolt, (3/8" x 1")
17 Lockwasher (3/8")
18 Bolt, (3/8" x 1-1/4")
19 Plug, Pipe
20 Plug, Pipe (1/8" Oil Level)
2
3
5
8
10
9
12
14
15
19
20
1
17
18
13
11
16
6
7
4
7
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