Key to figure 3-1.
I Fitting lubrication
18 Plate
d. Reassembly.
2 Screw
19 Packing
( 1 ) Immerse all parts in clean hydraulic oil for
3 Washer
20 Cup
lubrication before assembly.
4 Pin
21 Cup
(2) Refer to figure 3-1 for reassembly of boom
5 Fitting, lubrication
22 Piston
topping cylinder.
6 Screw
23 Cup
e. Installation.
7 Washer
24 Cup
(1) Support cylinder in position and insert
8 Pin
25 Packing
pins. Secure pins with capscrews and lockwashers.
9 Cylinder assembly
26 Plate
(2) Connect hydraulic hoses.
10 Nut (6)
27 Screw
(3) Start engine and operate boom thru several
11 Washer (6)
28 Eye
cycles to check for proper performance.
12 Screw (6)
29 Bushing
13 End
30 Nut
3-2. Room Extension Cylinder
14 Packing
31 Packing
15 Bushing
32 Shaft
a. Removal.
16 Pin, cotter
33 Cylinder
(1) Lower boom (TM 10-3950-203-10) and
17 Nut
provide a suitable support for it.
(2) Disconnect hydraulic hoses from extension
cylinder.
(3) Refer to figure 3-2 and remove capscrews
and washers securing pins (4) and (8).
c. Cleaning, Inspection and Repair.
(4) Support cylinder and remove pins. Remove
(1 ) Clean all parts
cylinder.
(2) Inspect all parts for corrosion, cracks
b. Disassembly. Refer to figure 3-2 and starting:
distortion, or other defects. Check contact areas fo
at the cylinder base end (13), disassemble the
scoring. Remove burs with a fine stone.
cylinder to the extent required to repair the
(3) Replace all seals, packings, and un
cylinder.
serviceable parts.
3-3
