Table 3-1. Preventive Maintenance Checks and Services.
Interval
AAfter Operation
MMonthly
BBefore Operation
WWeekly
QQuarterly
DDuring Operation
Org.
Operator
Daily
Q
Item to he inspected
Procedure
Reference
M
B
D
A
W
1
Starting device
Check starting device and
X
X
cable for wear.
Fuel and lube tank
Add fuel as required.
X
2
X
Drain upper cylinder combus-
Combustion chamber
X
3
tion chamber of any accumu-
lated oil.
Drain fuel tank and replace
Fuel filter
X
4
filter element.
Fuel pump rack
Clean and oil fuel pump rack
X
6
and bell crank.
Check recoil dampener operat-
X
Recoil dampener
6
ing height.
Inspect bronze wear rings for
Ram
X
7
wear. If replacement is re-
quired, refer to Direct Sup-
port.
I n s p e c t f u e l injector and
Fuel injector
X
8
washer. If replacement is
required, r e f e r t o D i r e c t
support.
Check discs for wear. Replace
Adapter assembly
X
9
all if any show signs of
breaking up.
Drain tank and remove and
Lubrication oil tank
X
10
wash oil filter.
Note 1. OPERATIONAL
TEST.
During operation observe for
any unusual noise or vibra-
tion.
Note 2. ADJUSTMENT.
Make all necessary adjust-
ments d u r i n g o p e r a t i o n a l
tests.
Section IV. OPERATOR'S MAINTENANCE
b. Disassembly. Disassemble the fuel filter as
3-7. General
illustrated in figure 3-2.
The instructions in this section are published for
c. Cleaning and Inspection.
the information and guidance of the Operator to
maintain the hammer.
(1) Clean all parts with an approved clean-
ing solvent and dry thoroughly.
3-8. Fuel Filter Service
(2) Inspect all parts for cracks, breaks, or
other damage.
a. Removal.
(3) Replace filter element.
(1) Drain fuel tank.
(4) Replace gasket between filter and tank
(2) Remove filter assembly as illustrated in
if necessary and replace O-ring if required.
3-2
