TM 5-3820-233-12/1
c. Clutches and Brakes. Inspect clutch plates and
(2) Eliminate spillage of material by adjusting skirt
board flashing.
brake linings and blow out or wipe off accumulation of
(3) To stop ice and snow accumulation on the driving
sand and dirt. Failure to keep plates and linings clean
surface and prevent slipping of conveyor belts, use a
will result in wearing, scored drums and unsatisfactory
small amount of anti-freeze on the drive pulley.
operation.
h. Brakes. Drain air reservoirs after operation to
d. Cooling System. Any signs of overheating may
remove condensation and prevent freezing.
indicate sand or dust have clogged the system
passages. Flush the system with clean water. Clean
2-14. Operation in Extreme Heat
radiator cases and fins of foreign matter with com-
a. Cooling System.
pressed air.
(1) Make sure the system is clean and free flowing.
e. Air Cleaners. Check the air cleaner frequently.
(2) Keep the coolant level in the radiator approx-
Change the cartridge if necessary.
imately one inch above the core.
2-16. Operation in High Humidity and Salt Water
(3) Keep the fan belt adjusted properly. Be sure
here is no obstruction of air to the fan.
Areas
(4) Open the drain cocks on the radiator and engine
a. General. Frequent inspection and preventive
block to drain and flush the system. Fill with clean water.
measures are required to prevent rust and deterioration
b. Engines.
of electrical insulation in high humidity and salt water
(1) Use only the crankcase oil recommended in the
areas. Inspections are necessary to find worn spots in
lubrication order.
the insulation which, unless repaired, would allow short-
(2) Keep the engine clean. Accumulation of dust and
circuit conditions to develop.
oil form an insulation against cooling air from the fan.
b. Protection from Rust and Corrosion. Rust and
c. Electrical System.
corrosion noted on any part of the unit must be corrected
(1) Check batteries at frequent intervals and fill to
immediately. Clean all rust and paint surfaces.
proper level with water.
2-17. Operation at High Altitudes
(2) Never allow batteries to overheat in service.
a. General. High altitudes will have no effect on the
Open the battery box and allow air to circulate around
performance of the plant.
the batteries.
b. Engine horsepower of the power unit will be
d. Lubrication. Refer to current Lubrication Order.
decreased thus reducing the capacity of the plant. If
2-15. Operation Under Sandy or Dusty Conditions
engine must be operated at higher altitudes refer to
a. Inspection and Lubrication . Fine sand or dust will
direct support for proper adjustment.
penetrate into bushings and bearings. Because of this
c. By-Pass Chute. This chute is between the feeder
inspect, lubricate and clean the unit more ten. Remove
and the jaw crusher. The by-pass chute may become
accumulations of sand or dirt and clean lubrication
clogged when operating with damp material that contains
fittings thoroughly before attach- ing the grease gun.
a high percentage of clay or pit fines. If this condition
b. Fuel System. Keep fuel tank filler caps tight to
occurs, stop the feeder and using the stone hook or bar
prevent sand or dust from entering fuel tank and fuel
as a poker, loosen the material in the chute; allowing it to
tank containers. Service fuel filters frequently to keep
pass on to the primary delivery conveyor.
them free of sand and grit.
2-20
