1
Nut
20
Plug
2
Lockwasher
21
Nut
3
Screw
22
Screw
4
Nut
23
Fitting
5
Lockwasher
24
Bushing
6
Stud
25
Roller
7
Upper cylinder
26
Gasket
8
Screw
27
screw
9
Spacer
28
Lockwasher
10
Shim
29
Bolt
11
Screw
30
Clamping plate
12
Lockwasher
31
Seal ring
13
Tank
32
Pressure plate
14
Plug
33
Plug
15
Plug
34
Cover
16
Cap
35
Gasket
17
Screw
36
Screw
18
Lockwasher
37
Lockwasher
19
Cylinder head
38
Spacer
Figure 6-9. Upper cylinder, exploded view-Continued.
(8) Make repairs to recoil dampener.
(d) Lift ram with the hoist lone and in-
stall in cylinder.
(9) Install in reverse order.
(e) When ram is halfway down in top
c. Cleaning, Inspection and Repair.
half of cylinder check the fuel pump timing
(1) Clean all parts with an approved clean-
ing solvent and dry thoroughly.
(f) When ram is all the way to the anvil,
(2) Inspect all parts for cracks, breaks, and
again check timing on fuel pump (para 6-4).
other damage. Replace a damaged or defective
(g) Remove eyebolt from ram.
part.
(h) Install cylinder head (para 6-2) and
fuel and lube tank (para 3-18).
(3) Replace the recoil dampener when the
anvil travel has increased to 1 inches.
6-10. Recoil Dampener
d. Check Anvil Travel.
a. General. The recoil dampener,15, fig. 6-10)
(1) Lift hamer free of any piling with the
is used to minimize shock caused by pile and soil
ram down, At this time the ram is resting on the
rebound.
anvil which is at its lower limit of travel.
(2) Going through the exhaust port, make
b. Removal.
a mark on the ram and a reference mark inside
(1) Remove the recoil dampener as illus-
the port.
trated in figure 6-10.
(3) Place the hammer on a piling so as to
(2) Latch into ram with lifting mechanism.
raise the anvil in the up position.
(3) With lifting device engaged disconnect
lifting mechanism cable from hoist cable.
(4) Measure the distance the mark on the
(4) Attach hoist cable to cylinder head and
ram has moved up from the reference mark in-
take strain with hoist cable.
side the port.
(5) Remove nuts on top of anvil guide studs.
(5) This distance must not exceed 1,
inches.
(6) Raise cylinder and ram, being held in
place by lifting device, off of anvil.
e. Installation. Install the recoil dampener in
(7) Raise leads and swing away from anvil.
the reverse order of removal.
AGO 20049A
6-9
