Generac Mobile MFH900, Owner'S Manual

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26 Owner’s Manual for Flameless Air Heater
Maintenance
Draining Fluids—Union Fluid Drain
See Figure 4-1 . This unit is equipped with a
union fluid
drain
(A), an exterior drain port for multiple fluids—
engine oil, engine fuel, engine coolant, hydraulic oil, and
DEF.
Figure 4-1.
Several ball valves (B, C, D) control fluid flows to exterior
drain.
To drain a fluid:
IMPORTANT NOTE: Drain one fluid at a time.
1. Verify unit is off and interior components are cool.
2. Verify all ball valves are OFF.
3. Place suitable container under exterior drain.
4. Remove plug from exterior drain port.
5. Open a ball valve.
IMPORTANT NOTE: Drain one fluid at a time—do not
open more than one ball valve.
6. Allow fluid to drain.
7. When fluid stops flowing from exterior drain, install
exterior drain plug removed in step 4.
8. On the controller, reset he service interval.
See
Accessing and Resetting Controller
Service Intervals for more information.
Adding Coolant
If coolant level is below the filler neck, coolant needs to
be added (see
Coolant Recommendation ).
1. Verify engine is stopped and cooled.
A Union fluid drain (exterior drain port)
B Ball valve—engine oil
C Ball valve—hydraulic oil
D Three ball valves—DEF, coolant, and fuel—see hole
in floor
B
A
D
C
(000139)
WARNING
Risk of burns. Allow engine to cool before
draining oil or coolant. Failure to do so could
result in death or serious injury.
Potential of cancer. Prolonged or repeated contact
with used motor oil has been shown to cause cancer
in laboratory animals. Thoroughly wash exposed
areas with soap and water.
(000127a)
WARNING
(000149)
DANGER
Risk of poisoning. Do not use mouth to siphon
coolant. Doing so will result in death or serious
injury.
(000154)
WARNING
Risk of burns. Do not open coolant system
until engine has completely cooled. Doing so
could result in serious injury.
(000165a)
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.