DRESSTA TD-25M EXTRA, Service Manual

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TRANSMISSION
SECTION 7C
Page 21
DRESSTA TD-25M EXTRA
TRANSMISSION
55. Disassemble component parts (3, 2, 3, 4, 3, 6, 5, 3, 4 and 3) in the sequence indicated.
56. Remove retaining ring (28) as shown in Fig. 7C.29.
57. Disassemble component parts (35, 29, and 30) in reference number sequence.
58. Compress springs (10) by pressing down on plate (9) with C clamp as shown in Fig. 7C.33 and
remove retaining ring (8).
Fig. 7C.33. Compressing Return Spring
59. Disassemble component parts (7, 9, 10, 17, 14, 13, 16, and 28) in sequence indicated.
60. Lift the shaft out of drum (36). Second retaining ring (28) need not be removed from drum (36)
unless replacement is necessary.
61. Remove retaining ring (2) and disassemble component parts (18, 19, 20, 23, 24 and 21) in
sequence indicated. If necessary, remove parts (51, 52 and 1).
6. INSPECTION AND REPAIR
1. It is recommended that new O-rings be installed whenever the transmission is disassembled
for service.
2. Wash all parts thoroughly in a suitable solvent. Dry thoroughly with compressed air or a clean
cloth.
NOTE: Do not spin dry bearings with compressed air.
3. Inspect bearings for excessive wear or damage and replace if necessary. Reusable bearings
should be soaked in clean oil and wrapped with clean paper until ready for reassembly.
4. Inspect the gears for worn, chipped or broken teeth. Replace if wear is excessive or teeth are
damaged.
5. Inspect the splines on the shafts and on the gears and drums for wear. Replace shafts if wear
is excessive. Slight burrs can be smoothed down with a stone.