Section V. FIELD EXPEDIENT REPAIRS
44. Engine Lacks Power
Operational troubles may occur while the
welding machine is operating in the field where supplies
Air cleaner clogged or
Remove air cleaner
and repair parts are not available and normal corrective
action cannot be performed. When this condition exists,
the following expedient remedies may be used during
45. Winterization Heater Not Getting Fuel
emergencies, upon the decision of the unit commander.
Equipment so repaired must be removed from operation
as soon as possible, and properly repaired before being
placed in operation.
Fuel filter clogged .............. Remove filter elements
43. Engine Not Getting Fuel
46. V-Belts Make Excessive Noise
Fuel strainer clogged .......... Remove fuel strainer
Fan v-belt frayed
Remove broken V-belt
and operate with one V-
Fuel filter clogged .............. Remove fuel filter
belt until replacement
Section VI. ENGINE ACCESSORIES
If an ambient temperature of 32° F is
The radiator should be cleaned
anticipated, see that the cooling
externally at weekly intervals by directing compressed
system is serviced with the proper
air at it to remove dirt and foreign matter from the
radiator core. The cooling system should be drained
grade and quantity of antifreeze by
and flushed at least twice a year, or before adding and
after draining antifreeze solution.
b. Draining, Cleaning, and Flushing.
a. Refer to figure 16 and adjust the V-belts.
(1) Operate the engine until it reaches operating
b. Perform field expedient repairs on a broken V-
belt by removing the broken V-belt.
(2) Refer to figure 15 and drain and fill the cooling
Operate the unit with the remaining belt of the
pair until a replacement can be obtained.
(3) Fill the radiator with clean, fresh water and the
proper amount of an approved cleaning
Performance of any field expedient
repair creates a condition possibly
dangerous to the equipment or
(4) Operate the engine until the rust and scale is
removed from the cooling system. Refer to
A welding unit so
repaired should be taken out of
service as soon as possible for
(5) Repeat (3) and (4) above, substituting an
replacement of the defective parts.
a. General. The welding machine has two 12-volt
(6) Repeat (1) and (2) above with clean water until
batteries connected in series by a jumper electrical lead.
the water that is drained from the radiator runs
The batteries are grounded to the frame by the positive
lead and are connected to the starter solenoid by a
(7) Fill the cooling system with clean water and add
negative electrical lead.
The batteries are also
an approved rust inhibitor.
connected to the battery-charging receptacle for
charging from an outside source.