(1) Drain oil from tank.
(2) Remove filter as illustrated in figure 3-3.
b. Disassembly. Disassemble the filter as illus-
trated in figure 3-4.
c. Cleaning and Inspection.
(1) Clean all parts with an approved clean-
ing solvent and dry thoroughly.
(2) Inspect all parts for cracks, breaks, wear
and other damage. Replace a defective part.
(3) Replace gasket between filter and tank,
and O-ring in bottom of end plate if necessary.
d. Reassembly. Reassemble the filter in reverse.
order of disassembly.
e. Installation.
(1) Flush tank with light oil.
(2) Install lubricating oil filter in reverse
order of removal.
(3) Refill oil tank.
3-10. Hydraulic Control System
a. Bleed hydraulic control system before start-
ing operation (para 2-9).
Figure 3-5.
Starting fluid injector filter screen,
3-11. Starting Fluid Injector
removal and installation.
a. Fill starting fluid injector tank.
d. Reassembly. Reassemble fuel filter in re-
(1) Use starting fluid from pour type cans.
verse order of disassembly.
(2) Never fill tank when hammer is at oper-
e. Installation.
ating temperature.
(3) Make sure vent hole in tank cap is open.
(1) Flush tank with diesel fuel.
(2) Install fuel filter in reverse order of re-
moval.
chamber of the hammer, droi, the ram several
(3) Refill fuel tank.
times with the fuel off to dry out the combustion
chamber before filling starting fluid tank.
3-9. Lubricating Oil Filter Service
a. Removal.
clean the filter screen at least once a month.
Section V. TROUBLESHOOTING
3-12. General
Malfunctions which may occur are listed in table
This section provides information useful in diag-
probable causes of the trouble. The corrective ac-
nosing and correcting unsatisfactory operation
tion recommended is described opposite the prob-
or failure of the hammer and its components.
able cause.
Table 3-2. Troubleshooting.
Probable
Corrective
cause
action
Malfunction
a. Empty fuel tank.
a. Fill fuel tank.
1. Hammer fails to start.
b. Fuel filter clogged.
c. Fuel line defective.
d. Fuel pump defective.
3-4
