TM 3-6665-209-35
b. Maintenance.
and motor mount disk (20) to the
(1) Removal and disassembly.
motor (22).
Remove these
(a) Remove the motor and pump
components from the motor.
assembly (par. 12).
(b) Pull the rubber tubing (9, fig. 6) from
Note
the adapter (8) and the copper
tubing (11). Pull the copper tubing
The governor assembly and governor
from the stopper (12) and the
plate are stocked items. Keep these
stopper from the blower housing
components intact and replace upon
(15).
assembly.
(c) Unscrew the adapter (8) from the
elbow (7) and the pipe to hose
(i) Remove the two motor electrical
straight adapter (13) from the elbow
brushes (39) from the motor (22).
(14). Remove the elbow (7) from
After unscrewing the brush caps,
the bushing (6) and the elbow (14)
withdraw the brushes from the
from the selector valve and blower
motor.
adapter (45). Remove the bushing
(j) Unscrew the coupling nut of the
(6) from the selector valve and
plastic tubing (23) from the elbow
blower adapter (45).
(30) and remove the plastic tubing.
(d) Unscrew the filter mounting flange
(k ) Remove, four screws (38) and
(5) from the selector valve and
lockwashers (37) that secure the
blower adapter (45). Remove six
pump cylinder (26) to the pump
screws (1) and lockwashers (2) from
mounting bracket (31) and remove
the filter cap (3) and separate the
the pump cylinder with the pump
filter cap orifice filter (4), and filter
piston (25).
mounting flange (5).
(I) Slide the pump piston (25) from the
(e) Remove four screws (47) and
pump cylinder (26) and remove the
lockwashers (46) that secure the
screw (28) and fiber washer (27)
selector valve and blower adapter
from the cylinder. Remove the oil
(45) to the blower housing (15) and
cup (29) and the elbow (30) from the
remove the selector valve.
The
pump cylinder (26).
valve handle (10) may be removed
(m) Loosen two setscrews (21) and slide
by removing the screw that secures
the pump cam (24) from the shaft
it to the selector valve and lifting the
extending from the reduction gear
handle from the valve.
box.
(f) Loosen the setscrew in the impeller
(n) If the pump mounting bracket (31)
(16) and remove the impeller from
requires replacement, remove the
the motor shaft.
three screws and lockwashers that
(g) Remove four nuts (18) and pull the
secure it and the reduction gear box
blower housing (15) with the blower
to the motor (22).
housing spacers (17) from the
blower
mounting
plate
(19).
Note
Unscrew the four blower mounting
spacers (17) from the blower
When removing the pump mounting
housing (15) and remove the blower
bracket, hold the reduction gear box
housing plate, an integral part of the
against the motor so that they do not
blower housing.
become unmeshed.
immediately
(h) Loosen the setscrew in the governor
replace the lockwashers and screws
assembly (42) and remove the
after the bracket is removed.
assembly from the motor shaft.
Remove the two governor electrical
(2) Cleaning and inspection.
brushes (40) from the governor
(a) Clean all parts with dry-cleaning
plate (41) and remove the two
solvent and wipe dry with a clean,
screws that secure the governor
dry cloth.
plate, blower mounting plate (19),
(b) Inspect the impeller for damaged
blades or other damage. Replace
the impeller if necessary.
AGO 8069A
41