Procedure for servicing the spin-on type water filter is as
should be drained and thoroughly flushed.
particularly important before using anti-freeze.
1. Remove water filter assembly by turning
counterclockwise with the hands or a suitable tool.
Unless the water in the cooling system is treated
Clean filter mounting pad.
with a corrosion preventive, rust and scale will eventually
clog up passages in the radiator and water jackets. This
2. Coat the gasket on the new filter with a film of
condition is aggravated in some localities by formation of
grease or oil.
insoluble salts from the water used.
3. Place the new filter in position on the center
IH cleaning solutions are available which have
tube. Hand tighten 1/2 to 3/4 of a turn after gasket first
proven very successful in removing accumulation of rust,
contacts base of mounting pad. Do not overtighten.
scale, sludge, and grease. This solution should be used
according to the recommendation on container.
4. Start engine and check for leaks.
NOTE: Do not use chemical mixtures to stop
radiator leaks except in an emergency. Never use
such solutions instead of needed radiator repair.
When draining the cleaning solution, disconnect
the radiator outlet hose, as large particles of sediment
will not pass through the drain. Also open the drain on
the right side of the crankcase toward the rear of diesel
engines. Drain plugs are located on the right and left
sides near the front on V-8 engines.
WATER FILTER (SPIN-ON TYPE)
If your vehicle is equipped with a cooling system
water filter, filter should be replaced every 10,000 miles
or as necessary to keep the cooling system free of
COLD WEATHER PREPARATION
If the truck is to be operated in temperatures of 32
degrees F, or lower, observe the following precautions:
The intervals at which engine oil must be changed
depend upon the type and quality of oil used, and the
type and severity of the operation. Oil changing is
closely related to filter element and air cleaner cleaning
Laboratory tests of used oils, by oil suppliers, will
assist in determining the advisable oil drain period.
AXLE AND TRANSMISSION
change to a lighter grade lubricant in the transmission
and the rear axle differential. A lubricant of lighter
viscosity will provide better lubrication to the moving