Specifications

MAINTENANCE
39
550 Gas/LPG 330650 (2--05)
ENGINE
LUBRICATION
Check the engine oil level daily.
The engine should be lubricated with SAE--SE/SF
rated engine oil. Change the engine oil and oil
filter after every 50 hours of operation. Change
the engine oil more frequently if the environment
is extremely dusty.
The following oil grades are recommended for
engines operating in the ambient temperatures
listed.
MULTI--VISCOSITY OILS
Below 32_F -- 1 0 _ to 90_F -- 1 0 _ to above 90_F Above 10_F
(Below 0_C) (--23_ to 32_C) (--23 to above 32_C) (Above --12_C)
(
)
5W 30
(
)
10W 30
(
)
10W 40
(
)
20W 40
The engine oil capacity -- Continental Engines
(for machines below serial number 006409)
is 7 qt (6.6 L) with filter .
The engine oil capacity -- GM Engines
(for machines serial number 006409 and above)
is 5 qt (4.7 L) with filter . On GM engines, the oil fill
is under the breather cap.
COOLI NG SYSTEM
Maintaining cooling system efficiency is important.
Engine temperatures must be brought up to and
maintained within the satisfactory range for
efficient operation. However , the engine must be
kept from overheating in order to prevent damage
to the valves, pistons, and bearings. Check the
coolant level after every 100 hours of operation.
Use soft, clean water mixed with permanent-type,
ethylene glycol antifreeze in a one-to-one ratio.
Deposits of sludge, scale, and rust prevent normal
heat transfer . Flush the radiator and the cooling
system after every 800 hours of operation using a
dependable cleaning compound. Follow the
mixing procedure recommended by the compound
manufacturer. This is important because of the
difference in concentration and composition of the
cleaning compounds. After cleaning, flush the
system with clean water.
Whenever a cooling system is badly rust-clogged
as indicated by overflow loss or abnormally high
operating temperatures, corrective cleaning by
reverse flow flushing will most effectively remove
the heavy deposits of sludge, rust, and scale. The
reverse flow flushing should be performed
immediately after draining the cleaning solution.
Flush the radiator first, then the engine, to allow
the engine to cool as much as possible.
Engine overheating may also be caused by dirty
radiator fins. The exterior fins of the radiator can
be cleaned with an air hose. Clean the radiator
exterior after every 50 hours of operation.
Blow all dust, which may have collected on the
radiator, in through the grill and radiator fins,
opposite the direction of normal air flow. This
should be done only after the radiator has cooled,
to avoid cracking.
FOR SAFETY: When Servicing Machine,
Wear Eye And Ear Protection When
Using Pressurized Air Or W ater.
The engine is equipped with a 180_ F(82_ C)
thermostat. Normal engine temperature is
200_ F(93_ C). Temperatures up to 220_ F
(104_ C) are allowable. Temperatures over
220_ F (104_ C) indicate a problem exists.
NOTE: Overheating is always accompanied by
loss of coolant water . If in doubt, check.
A pressure cap is used on the radiator to prevent
overflow loss of water during normal operation.
The spring-loaded valve in the cap closes the
outlet to the overflow pipe of the radiator and thus
seals the system. Pressure developing within the
system raises the boiling point of the coolant and
allows higher temperatures without overflow loss
from boiling. The pressure valve opens at 15 psi
(100 kPa) allowing steam and water to pass out
the overflow pipe.
FOR SAFETY: When Servicing Machine,
Avoid Contact With Hot Engine Coolant.
Home
Find...
Go To..