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Maintenance
WARNING
Risk of burns. Contents under pressure.
Do not remove the radiator pressure cap
while engine is hot. Doing so could result
in death or serious injury.
WARNING
Risk of burns. Do not open coolant system
until engine has completely cooled. Doing so
could result in serious injury.
CAUTION
Risk of overheating. Do not use any chromate base
rust inhibitor with propylene glycol base antifreeze,
boosters, or additives. Doing so will cause overheating
and possible equipment damage.
CAUTION
Personal injury. Wear appropriate personal protective
equipment at all times while operating and servicing
unit. Failure to do so could result in personal injury.
Coolant must be changed every year or at 1,000 hours of
operation. Check coolant level and degree of fouling
according to the steps below. Correct coolant level is
approximately 0.39 in (10 mm) below the radiator core
top. Wear proper PPE when handling Long Life Coolant.
1. Verify engine is stopped and cooled.
2. See
Figure
4-1. Verify coolant drain plug (A) is
closed.
Figure 4-1. Coolant Drain Plug
3. See
Figure
4-2. Remove radiator cap (B).
18
(000322a)
(000154)
(000165a)
(000419)
NOTE: Coolant level will drop.
Maintenance Schedule
Periodic inspection, service, and maintenance of this unit
is critical to ensuring reliable operation. The following is
the manufacturer's recommended maintenance sched-
ule. The maintenance items need to be performed more
frequently if the unit is used in severe applications (such
as very high or very low ambient conditions or extremely
dirty or dusty environments). Use the unit hour meter or
calendar time, whichever occurs first, from the previous
A
maintenance interval to determine the next required
maintenance interval.
NOTE: Some checks are based on hours of operation.
Follow all applicable safety alerts in this manual or the
engine service manual before performing any mainte-
nance checks or service.
This maintenance schedule reflects the minimum tasks
008970
needed to verify the unit remains operational. Some of
the tasks can be performed by an authorized operator,
and others must be performed by a GMP ASD.
NOTE: An authorized operator is one who has been
trained by a GMP ASD in proper operation and
inspection of this unit.
Figure 4-2. Radiator Location
4. Fill radiator slowly with coolant until it reaches the
lip of the filler port.
5. Replace radiator cap.
6. Remove cap (C) from sub-tank.
7. Fill sub-tank with coolant until it reaches the FULL
mark.
8. Replace sub-tank cap.
9. Operate engine approximately five minutes at a
low idle speed to purge air in the coolant system.
10. Stop engine and, once cooled, replenish with
coolant until the sub-tank reaches the FULL mark.
Owner's Manual for Indirect Fired Heater
B
C
008978
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