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Maintenance
34
MGG155/210 Operating Manual
35319 C
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Check the IEPR electrical connection to verify the connector is seated and locked.
Checking/Draining Oil Build-Up in the Vaporizer Regulator
During the course of normal operation for LPG engines, oil or “heavy ends” may build inside the secondary chamber
of the vaporizer regulator. These oil and heavy ends may be a result of poor fuel quality, contamination of the fuel,
or regional variation of the fuel make up. A significant build up of oil can affect the performance of the secondary
diaphragm response. It is recommended the oil be drained periodically. See the
This is the minimum requirement to maintain the emission warranty.
We recommend the vaporizer regulator be drained at every engine oil change if contaminated or sub-standard fuel
is suspected or known to have been used. Failure to follow this recommendation may be used to deny a warranty claim.
Note:
Draining the regulator when the engine is warm will help the oils to flow freely from the regulator.
To drain the regulator, follow the steps below:
1. Verify the equipment is in a well-ventilated area and no external ignition sources are present.
2.
Start the engine.
3.
With the engine running, close the manual valve.
4.
When the engine runs out of fuel, press STOP on the controller and turn the battery disconnect switch OFF.
5.
Loosen the hose clamps at the inlet and outlet hoses on the regulator and remove the hoses.
6.
Remove the regulator mounting bolts.
7.
Place a small receptacle in the engine compartment under the regulator.
8.
Rotate the regulator 90° so the outlet fitting is pointing down into the receptacle and drain the regulator.
9.
Inspect the secondary chamber of the regulator for any large dried particles and remove.
10.
Rotate the regulator back to its original position and reinstall the regulator mounting bolts.
11.
Remove the receptacle. Dispose of any drained material in a safe and proper manner.
12.
Install the fuel hoses.
13.
Connect any other hoses removed during this procedure.
14.
Slowly open the manual service valve.
15.
Check for leaks at the inlet and outlet fittings using a soapy solution or an electronic leak detector. If leaks
are detected, repair the leaks.
16.
Check coolant line connection to verify no leaks are present.
17.
Start engine.
18.
Recheck for leaks at the regulator.
MAINTENANCE SCHEDULE
Periodic inspection, service, and maintenance of this unit is critical in ensuring its reliable operation. The following
is the manufacturer’s recommended maintenance schedule. The maintenance items will 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/dusty environments). Use the unit hour meter or calendar time, whichever occurs first, from the previous
maintenance interval to determine the next required maintenance interval. Note that some checks are based on
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