Download Model M18 Free Fall

SERVICE INSTRUCTIONS CONTINUED
718
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1
SUB-ASSEMBLY BRAKE HUB
719
720
722
723
724
727
730
731
25336
21986
20455
25303
20421
25335
21322
25288
1
1
1
1
1
1
1
1
CIRCLIP ROTOR CLIP SH-187
BRAKE HUB
SPRAG CLUTCH ALIGNER
SPRAG CLUTCH BORG WARNER
SPRAG CLUTCH ALIGNER RIGHT
CIRCLIP ROTOR CLIP SH-196
MOTOR DRIVE SHAFT
CIRCLIP ROTOR CLIP C-112
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PART No. VARIES ACCORDING TO BRAKE CODE - REFER TO APPENDIX D
2.5) Thoroughly inspect motor drive shaft, item 730, and brake hub, item 720, particularly the surfaces where
the sprag clutch, item 723, engages. If any indentation or surface damage is detected, replace brake
hub, sprag clutch and motor drive shaft as a set.
2.6) Thoroughly examine the inner bores of the brake housing and the outer diameters of the brake piston
for scoring caused by hydraulic fluid contamination. Minor surface damage may be repaired by
polishing with a fine emery cloth.
DANGER
DAMAGED FRICTION OR DIVIDER PLATES WILL REDUCE BRAKING
CAPACITY AND ALLOW THE LOAD TO DROP, CAUSING PROPERTY
DAMAGE, SEVERE INJURY OR DEATH. SOLVENT MAY DAMAGE THE
FRICTION PLATES. DO NOT USE SOLVENT TO CLEAN THE FRICTION
PLATES. PERFORM THOROUGH INSPECTION AND, IF NECESSARY,
REPLACE FRICTION AND DIVIDER PLATES AS A SET.
2.7) Remove six friction plates, item 715, and seven divider plates, item 713, and inspect for damage or
wear. Plates should be flat and smooth. Plates should not show heat discoloration. Paper material on
friction plates should be intact and grooved. If any damage is detected, replace friction and divider
plates as a set.
373 REV.111024
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