chassis, screw nuts back on bolts to protect
threads and block tank for safe repairs.
b. Installation.
To
install
tank
reverse
procedures in paragraph 5-29a, steps (1) through
(6) and use teflon tape or pipe dope on all pipe
fittings.
5-30. Oil, Solution Pump and Motor Assembly
(Refer to Fig C-7)
a. Removal. To remove the assembly proceed
as follows:
(1) Disconnect main power to steam cleaner.
(2) Disconnect and tag electrical wires for
motor at magnetic starter and remove electrical
cable.
(3) Loosen hose clamp on pump discharge
hose at air dome assembly and remove hose from
hose spud.
(4) Remove 8-inch water suction nipple
which extends into water tank and/or section inlet
hose if attached.
(5) Loosen and remove blower belt.
(6) Remove hose clamp and hose from
solution pump soap inlet connection.
(7) Close fuel filter flow valve and remove
fuel intake hose at filter and fuel by-pass hose on
oil tank (back side).
(8) Remove oil pump outlet copper tube line.
(9) Remove four bolts and nuts securing
base plate to chassis.
(10) Slide water pump, oil pump and motor
assembly through front of steam cleaner.
b. Installation.
To
install
the
complete
assembly reverse procedures in paragraph 5-30a,
steps. (1) through (10).
5-31. Water Pump (Refer to Fig C-9)
a. Removal. To remove water pump proceed as
follows:
(1) Accomplish procedures in paragraph 5-
30a, steps (1) through (10).
(2) Remove four pump mounting bolts and
nuts and washers and lift pump from base plate.
Lift pump free.
b. Installation. To install water pump proceed
as follows:
(1) Replace water pump on base, secure in
place with four nuts, bolts and washers.
(2) Accomplish procedures in paragraph 5-
30a, steps (1) through (10) in the reverse order.
5-32. Motor (Refer to Fig C-10)
a. Removal. To remove the motor proceed as
follows:
(1) Accomplish procedures in paragraph 5-
30a, steps (1) through (10).
(2) Remove four bolts, washers and nuts
securing motor to mounting plate.
b. Installation. To install the motor proceed as
follows:
(1) Place motor on base plates, securing in
place with four bolts, washers and nuts.
(2) Align and tighten motor to pump belt.
(3) Accomplish procedures in paragraph 5-
30a, steps (1) through (10) in the reverse order.
5-33. Oil Pump Assembly (Refer to Fig C-11)
a. Removal. To remove oil pump proceed as
follows:
(1) Remove oil pump intake hose, by-pass
return hose and outlet copper tubing.
(2) Remove two bolts, washers and nuts
securing pump to mounting plate and remove belt.
b. Installation. To install oil pump proceed as
follows:
(1) Connect outlet copper tubing, by-pass
return hose and fuel intake hose, secure and open
fuel filter valve.
(2) Place pump on mounting base and snug
in place with two bolts, washers and nuts aligning
and tensioning belt while securing in position.
WARNING
Before performing any of the following procedures,
assure all electrical power to the unit has been
disconnected.
5.34. High Fire Fuel Solenoid Valve (Refer to
Fig C-13)
a. Removal. To remove the high fire fuel
solenoid valve proceed as follows:
(1) Remove front fire panel and electrical
control box cover.
(2) Disconnect three copper tubing con-
nections to valve.
(3) Disconnect valve electrical leads no. 2,
and 6 from lower half of electrical control box
terminal board.
(4) Loosen and remove valve assembly
retaining jam nut inside electrical box.
(5) Lift valve from back of electrical control.
b. Installation. To install high fire fuel
solenoid valve proceed as follows:
(1) Inset ½-inch pipe nipple portion of valve
assembly through opening in back of electrical
control box. High fire valve fits in opening closest
to front of unit.
(2) Secure valve to box with electrical jam
nut on ½-inch pipe nipple on inside of box.
(3) Connect valve electrical leads to control
terminal board terminals 2 and 6.
TM 9-4940-342-14&P
39
