Komatsu 930E-2 Shop Manual page 354

12. Attach a lift strap through bars and lift inner gear
(5) out of brake assembly. Remove shipping bars
and spacers.
13. Remove capscrews (2, Figure 5-6) and hardened
washers (3) from piston housing (1).
14. Insert a 7/8 UNC x 2.0 in. pusher bolt in each of
the three tapped holes in the piston housing.
Tighten bolts evenly to lift housing from ring gear
(5). Remove and discard O-ring (4).
J5-6
15. Position piston assembly with retract springs on
top as shown in Figure 5-7.
16. Remove capscrews (1, Figure 5-7), spring guides
(2), and piston retract springs (3).
NOTE: Capscrew (1) threads are coated with Loctite
during assembly. A small amount of heat applied to the
piston housing may be required for easier removal.
17. Loosen or remove plugs installed in piston housing
ports. Carefully lift piston (4) out of housing (5).
Remove seal assemblies (6 & 7).
Disc Brake Assembly
®
J05018 03/01