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 TM55-1730-228-13&P
4-31. SCISSORS, SCISSORS ARK ROLLERS AND SHAFTS - REPLACE (Continued)
4-31
3 Inspect bushings for scoring and damage. Press new bushings in if required.
(2) Installation:
(a)
To install scissor arm rollers:
1 Clean and lubricate camfollowers (9) with multipurpose spray lubricant.
2 Place camfollower (9) in position in outside scissor arm (10).
3 Install washer (8) and nut (7) on camfollower (9).
4 Tighten nut (7) securely.
(b)
To install shaft(s) into scissors:
1 Align scissors joint.
2 Lubricate the shaft with a thin film of GAA grease.
NOTE
While installing shaft, be sure that the hole in the shaft, and the hole in the collar are aligned.
3 Start shaft (4) in joint and install washers (6) while driving shaft with remaining hardware in position.
4 Install washers (3) and retaining ring (2) on shaft (4).
5 Use a tapered drift to check locking collar to shaft alignment.
6 Install new roll pin (1) in shaft locking collar weldment.
7 Install grease fittings (5) on shaft (4).
NOTE
The lower shaft of the bottom, inside scissor assembly has no locking collar. Remove the capscrews (2)
and washers (3) securing blocks (4) to frame.
(c) Remove hardwood blocking.
(d) Remove slings and hoist.
(e) Install lift cylinders if removed. Refer to para 4-14.
(f) Lubricate fittings (5) on each side of affected shaft(s) with GAA grease.
(g) Start SPEMS and check for proper operation.
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4-105
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