Lull 6K Service Manual - Manual (Page 270)

Boom and Transfer
6-20 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Overhaul
Front Carriage Tilt
Cylinder
Fig. 6-13: Front Carriage Tilt Cylinder Assembly
(Ref. Fig. 6-13) The following steps are required to overhaul the front
carriage tilt cylinder.
1. Mount or support cylinder vertically with rod end down. Hydraulic oil in
cylinder will drain out during disassembly. Place a suitable pan or tray
under the cylinder.
2. Release oil pressure in the cylinder as follows:
WARNING: The counterbalance valve cartridge traps hydraulic pressure
in the cylinder. Wear proper eye and hand protection when
removing counterbalance valve cartridges. Hydraulic fluid
under pressure can be injected under skin or into eyes,
resulting in serious personal injury or death.
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# Description
1 O-ring Connector
2 Manifold Block
3 Lockwasher
4 Capscrew
5 Counterbalance Valve Cartridge
6 Rod Nut
7 Cylinder Barrel
8 Bushing
9 Grease Fitting Cover
# Description
10 Grease Fitting
11 Piston
12 Stroke Limiter
13 Rod Bearing Head
14 Cylinder Rod
15 Capscrew
16 Bushing
17 Grease Fitting Cover
18 Grease Fitting
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