TM 55-4920-231-14
OPERATOR'S AND ORGANIZATIONAL
MAINTENANCE lNSTRUCTIONS
Section I. SPECIAL ORGANIZATIONAL MAINTENANCE
AND REPAIR PARTS
49. SPECIAL TOOLS.
The repair parts required for organizational
There are no special tools required for orga-
maintenance of the tester are listed in the Re-
pair Parts and Special Tools Lists, Appendix C.
nizational maintenance of the tester.
Section II. LUBRICATION
(5) Remove cap from the required oil con-
51. GENERAL.
tainer (3 or 4, figure 3) and insert oil hose
This section contains a lubrication chart (fig-
tube (8) into container.
ure 18) and lubrication instructions which are
(6) Start tester (paragraph 36) and run
supplemental to, but not specifically covered in,
pump until oil level is at index mark on reser-
the lubrication chart. Refer to DA PAM 310-4
voir (16, figure 4); then remove oil hose tube
for current lubrication order.
(8, figure 3) from oil container and hold in a
vertical position to allow oil to be drawn out of
hose (12, figure 4).
CAUTION
(7) Turn selector valve lever (5, figure 9)
to RUN position as shown on selector valve in-
Do not allow dirt, dust, water, or other
structions (15, figure 4) and stop tester ( para-
foreign materials to mix with the lubri-
graph 37).
cant at any time as they will damage
(8) Remove oil hose tube (8, figure 3)
the pump.
from oil hose (12, figure 4) and install cap (4).
a. Care of Lubricants. Keep the oil in the
(9) Place oil hose (12) between reservoir
containers provided with the tester and stow in
(16) and side panel of tester.
the cover compartment.
(10) Close rear access panel (11).
b. Filling Oil Reservoir.
c. Draining Oil Reservoir.
(1) Place PRESSURE and VACUUM se-
(1) Turn PRESSURE selector knob (10,
lector knobs (10 and 20, figure 7) in OFF posi-
tion.
knobs (11 and 12) to close valves.
(2) Turn knobs (11, 12, 17, and 19) to
(2) Place VACUUM selector knob (20) in
open valves.
OFF position and turn knobs (17 and 19) to
open valves.
(3) Open rear access panel (11, figure 4)
and turn selector valve lever (5, figure 9) to
(3), Open rear access panel (11, figure 4)
FILL position as shown on selector valve instruc-
and turn selector valve lever to RUN position
tions (15, figure 4).
as shown on selector valve instructions (15).
(4) Remove cap (4) from oil hose (12) and
(4) Remove cap (4) from oil hose (12) and
install oil hose tube (8, figure 3).
install oil hose. tube (8, figure 3).
