JLG 1850SJ Service And Maintenance Manual page 403

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Table of Contents

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-

SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS

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

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

24. Pull to remove the slipper retainer (K049) with the pis-

tons (K050) from the cylinder kit.

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