Parts # and Description
1- 1st set housing adapter
2- 1st set housing
3- 1st input shaft & pinion
4- Idler gear
5- 1st set output gear
6- 1st set collar
7- 1st set output gear spacer
8- Idler gear spacer
9- 1st set housing gasket
10- Thrust BRG. Input shaft
11- Thrust BRG Input shaft
12- Thrust BRG Idler gear
13- Bearing 1st set HSG
14- Bearing 1st set HSG adapter
15- Bearing Idler gear
16- Quad ring Input shaft
17- Retaining Ring Input shaft
18- Idler shaft pin
19- 2nd set housing
20- 2nd set housing adapter
21- 2nd HSG gasket
22- Interm shaft & pinion
23- 2nd set output gear
24- 2nd output shaft spacer
25- Collar output gear 2nd set
26- Bearing interm shaft
27- Thrust BRG interm shaft
28- Thrust BRG interm shaft
29- Bearing 2nd set housing
30- Interm. shaft & retaining ring
31- 3rd set housing
32- 3rd set housing
33- Interm shaft & output pinion
34- 3rd output gear
35- Collar output gear 3rd set
36- 3rd set output shaft spacer
37- Thrust BRG output pin & shaft
38- Thrust BRG output pin & shaft
39- BRG 3rd set housing
40- BRG 3rd set HSG Adapter
41- 3rd set HSG Gasket
42- Bevel Gear Housing
43- B. G. HSG Cap
44- Bevel pinion & Shaft
45- Bevel Gear
46- Pinion Shaft Bearing
47- Pinion Shaft Bearing
48- Bevel Pinion Retaining Ring
49- B. G. cap O’ring
50- B. G. Gasket
51- Pinion shaft BRG. shim
52- Pinion shaft cap shim
*All of the standard Limitorque spur gear attachments are made up of segments. The first segment is the 2.86:1 attachment. When the second segment is added to the first, the overall attachment ratio is between 8.5 and 12:1. When both the first and second attachment are added to the third, the overall gear ratio is between 19 and 38.9. The disassembly instructions described below will disassemble the 38.9:1 attachment.
Steps 1 thru 10 describe the 8.5 to 12:1 attachment disassembly, and the full instruction describes the 19 to 38.9:1 attachment disassembly.
1. Remove the first set housing (#2)
2. Remove input shaft and pinion (#3)
3. Remove idler gear, pc #4, and idler gear spacer (#8)
4. Remove the set output gear (#5)
5. If only 2.86:1 spur attachment was utilized you must next remove housing adapter (#1) and output gear spacer (#7)
6. Remove second set housing adapter (#20)
7. Remove intermediate shaft and pinion (#22) being careful not to lose thrust washers (#27 and 28)
8. Remove output gear collar (#25)
9. Remove second set output gear (#23) and second set output gear spacer (#24)
10. If the spur attachment gear ratio is 8.5 to 12:1, next remove second set housing (#19)
11. If the spur attachment gear ratio was 19 to 38.9:1, remove third set housing adapter (#32)
12. Remove intermediate shaft and output pinion, pc#33, being careful not to lose thrust washers (#37 and 38)
13. Remove third set output gear collar (#35)
14. Remove third output gear (#34) and spacer (#36)
15. Remove third set housing (#31)
In reassembling the above spur attachments, follow all of the instructions in the reverse order ensuring that all of the bearings indicated in assembly drawings are intact and in good condition.
Bevel gear attachments of all ratios utilize a basic 2.86:1 input bevel gear attachment to replace the basic 2.86:1 first set spur attachments and then all remaining gear ratios are identical to the first set 2.86:1 bevel proceed as follows:
1. Remove bevel gear housing cap (#43)
2. Remove bevel pinion and shaft (#44)
3. Remove bevel gear housing (#42)
4. Remove bevel gear (#45), and spacer, pc (#7)
5. If the attachment gear ratio was 2.86:1, remove (#1) first set housing adapter.
6. If the attachment was greater than 2.86:1, proceed as above starting with step 6.