c. Cooling System.
(1) Drain and flush the cooling system, to insure
frequently remove sand and dust. Lubricate more
proper circulation of coolant throughout the radiator core.
frequently to keep a supply of clean lubricant at moving
Clean the radiator cooling fins, particularly the air
parts. Clean all lubrication fittings thoroughly before
passages through the core, of insects, leaves, dirt, and
attaching the grease gun.
c. Revolving Frame Live Roller Circle. Keep the
other foreign material that will restrict air flow.
(2) Inspect the cooling system for leaks. Replace
roller path and rollers clean and dry. Do not lubricate the
worn or damaged hose connections. Tighten the hose
rollers or the roller path; lubricant on the rollers or roller
path will collect sand and cause the rollers to wear
(3) Keep the water pump fan belt adjusted property.
(4) If the engine becomes overheated from lack of
d. Clutches and Brakes. Inspect the clutch and
coolant, let the engine run at a fast idle and add coolant
brake linings frequently. After operation in dust or sand,
blow loose grit out of linings. Failure to keep the linings
(5) If the engine overheats after refilling the cooling
clean will result in worn bands, scored drums, and
system, shut down the engine and allow it to cool. Drain
the cooling system by opening the drain cocks on the
e. Cables. Keep unused cables in boxes. Clean
radiator and the engine block, and flush out the system.
and lubricate operating cables frequently.
Refill the cooling system with clean water; do not use salt
f. Fuel System. Keep the fuel tank filler cap tight to
or mineral water solutions in the cooling system.
prevent sand or dust from entering the fuel tank. Service
(6) If the engine continues to overheat in operation,
the fuel filters frequently to keep them free from sand
report the condition to organizational maintenance.
d. Batteries. Keep as much air as possible circulating
g. Footings. Use wood blocking or mats under the
around the batteries.
Check the electrolyte level
outrigger jack-floats when operating in sand. See that the
frequently; add distilled water as necessary to keep the
carrier does not shift during operation.
electrolyte level 3/ inch above the plates.
e. Engine Operation. Keep the air intake and exhaust
2-29. Operation in High Humidity or Salt
openings clear. Keep the engine dean, and allow air to
circulate freely around the engine.
Moisture and salt will cause
(1) Avoid racing the engine, and avoid operating at
full throttle when part throttle will handle the load.
metallic parts. Keep parts dry and well lubricated in high
(2) Avoid lugging the engine; keep the engine speed
humidity or salt water conditions.
high enough to maintain the fan speed.
b. Wiring. The wiring of the truck crane has been
(3) Avoid idling the engine unnecessarily; shut the
moisture and fungus proofed, but the sheathing can be
engine down during a lull in the operation.
cracked and split during operation. Frequent inspections
are necessary to detect worn spots from developing into
2-28. Operation in Dusty or Sandy Areas
short-circuit conditions. Report any such condition to
a. General. Operation in dusty or sandy areas
presents special problems due to abrasive action of dust
c. Corrosion Prevention. Completely remove rust
which shortens the life of parts. Make every effort to
and corrosion at the first appearance on any part of the
keep dust and sand out of the moving parts of the crane
truck crane. Wash off salt water and dry all parts
machinery and engine.
thoroughly; paint the exposed surfaces immediately.
Place a film of lubricant or grease on all polished or
equipment must be kept clean. Service breathers and
machined metal surfaces and other surfaces which
cannot be painted.