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  CHAPTER 6
REPAIR INSTRUCTIONS
Section I. CYLINDER HEAD
b. Cleaning, Inspection and Repair.
6-1. General
The cylinder head allows the air compression plus
(1) Clean parts with an approved cleaning
giving the ram and cylinder bore protection from
the elements and any foreign matter which may
solvent and dry thoroughly.
drop from the boom point or hoist cables. An area
which is called the safety space is located between
(2) Inspect parts for breaks, cracks, or other
the cylinder head and the compression tank ports.
damage. Replace a defective part.
6-2. Removal and Installation
c. Installation. Install cylinder head in reverse
a. Removal. Remove cylinder head as illus-
order of removal.
trated in figure 6-l.
Section II. LUBRICATION SYSTEM
c. Cleaning, Inspection, and Repair.
6-3. Oil Pump
(1) Clean parts with an approved cleaning
solvent and dry thoroughly.
(2) Inspect parts for cracks, breaks, or
other damage and replace any damaged or de-
fective part.
pump.
d. Adjustment. To check the lube oil pump
operation, the following procedure should be fol-
lowed :
(1) Latch into ram with starting device.
(2) Raise ram 6 to 8 inches.
(3) Set and lock hoist brake.
(4) Remove lube oil lines from fitting on top
of pump (fig. 3-6).
(5) With fuel pump rack in OFF position,
insert the hand priming lever and manually oper-
ate the oil pump. At least one drop of oil should
be visible per stroke.
(6) To increase amount of lube oil discharge,
shims should be removed from beneath oil pump.
(7) To decrease amount of lube oil discharge,
Figure 6-1. Cylinder head, removal
and installation.
shims should be added beneath oil pump.
6-1
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