JLG 40RTS Service Manual - Manual (Page 57)

SECTION 2 - PROCEDURES
3120826 – JLG Sizzor – 2-41
2.26 DRIVE BRAKE - 2WD/2WS REAR
Disassembly
1. Remove end cover from housing by removing
washer head cap screws.
END COVER IS UNDER SPRING TENSION OF APPROXIMATELY
2000 LBS. (907 KG.) THE FOUR WASHER HEAD CAP SCREWS
SHOULD BE LOOSENED EVENLY TO RELIEVE THIS FORCE. IF A
HYDRAULIC PRESS IS AVAILABLE 3000 LBS. MIN. (1361 KG MINI-
MUM), COVER CAN BE HELD IN POSITION WHILE REMOVING
WASHER HEAD CAP SCREWS.
2. Remove case seal from housing, then remove
bleeder screw from end cover.
3. Remove piston from end cover.
4. Remove o-ring, back-up ring, o-ring and back-up
ring from piston.
5. Remove separators from housing.
6. Remove stack assembly, consisting of discs, return
plate, and friction discs from housing.
7. Remove dowel pins, springs (5 & 6), and spring
retainer from housing.
NOTE: Not all models use the same number of springs or
spring pattern. Record this information for assembly
purposes.
8. Remove retaining ring from housing.
9. Remove shaft by pressing or using a soft mallet on
male end of shaft.
10. Remove retaining ring and bearing from shaft.
11. Press rotary oil seal from housing.
Assembly
NOTE: Lubricate all rubber components from repair kit with
clean hydraulic fluid of the type used in the system.
1. Clean all parts thoroughly before assembly.
2. Press new rotary oil seal into housing. Note direction
of seal.
3. Install new bearing and retaining ring on shaft .
4. Insert shaft assembly and retaining ring in housing.
5. Insert dowel pins, spring retainer, and springs (5 &
6) in housing