JLG 1850SJ, Service And Maintenance Manual, Page: 403 / 712

SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS
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14. Remove the servo piston (P020) and bias spring (B025)
from the swashplate by removing the clevis pin (B043)
and snap ring (B044). Discard the snap ring.
15. Pull to remove the front tapered roller bearing cup
(B060) and cone (B070).
16. Examine the cradle bearings (B030) to determine if they
need replacement.
NOTE: Removing the pins (B071) will likely damage the cradle
bearings, so make sure you have replacement bearings
before you remove them.
17. If cradle bearings need replacing, remove the 2 pins
(B071) holding the cradle bearings, and then remove the
cradle bearings. Note the location and orientation of the
bearings for re-installation.
18. Orient the housing with the flange facing up.
19. Using snap-ring pliers, remove the snap ring (K010).
20. Carefully pry out the shaft seal (K020).
If you are unable to pull the shaft seal out, try to push
the seal out by going through the inside of the housing.
21. Remove the 4 plugs (C103, C104, C105, C106) and their
O-rings (C103A, C104A, C105A, C106A). Discard the O-
rings. Remove the 2 set screws (C102). Remove the
spools (C112, C132). Note which bore each spool came
out of. Also note the orientation of each spool for rein-
sertion. There may be differences in reinserting into the
same bore.
22. Remove the adjusting screw (C138) and the O-ring
(C138A). Discard the O-ring. Remove the springs (C134,
C135) and spring guide (C133).
23. Remove the adjusting screw (C118), O-ring (C116) and 2
backup rings (C117). Discard the O-ring and backup
rings. Remove the springs (C114, C115) and spring guide
(C113).
24. Pull to remove the slipper retainer (K049) with the pis-
tons (K050) from the cylinder kit.
B071
p B070
p
R
E101 178
B060
K020
K010
C112
C104
C103
C105
C105A
C106
C102
C113
C115
C114
C117
C116
C117 d
C118
C133
C135
C134
C138
C138A
E101 180
d
C132
C103A
C106A
C104A