8 - FORM NO. 56043093 / Captor
™
4300, 4800, 5400
ENGINE AIR FILTER
The engine Air Filter (8) is located in the engine compartment. Check the air mechanical vacuum lter Service Indicator (46) before each use
of the machine. Do not service the air lter unless the indicator is lit (red).
CAUTION!
When servicing the engine air lter elements, use extreme caution to prevent dust and dirt from entering the engine.
The engine air lter contains a primary (outer) and a safety (inner) lter element. The primary element may be cleaned twice before being
replaced. Replace the safety element every third time that the primary element is serviced. Never try to clean the safety element. To clean
the primary lter element, remove the cover from the dust cup end of the canister and pull out the primary element. Clean the element with
compressed air (maximum pressure 100 PSI) or wash it with water (maximum pressure 40 PSI). Do not put the element back into the canister
until it is completely dry.
Special Service Note: Inspect the complete air intake system for proper routing (kinks & restrictions) and sound tight connections. The
mechanic should run their hand around the air intake hoses to check for any cracks and holes that will allow non-ltered air to enter the
engine that will severely shorten the engine’s useful life.
ENGINE MAINTENANCE (150 HOURS)
At 150 hour intervals it is recommended that the following service be performed: Change oil and lter, clean and inspect spark plugs, check all
engine belts condition and adjustment, check battery charge and level, check cooling system hoses and clamps and check general condition
and performance of engine.
Note: Reference the separately supplied PSI GM Power Train Products Operation and Maintenance manual for more detailed service data.
PSI manual number is 3610000.
SPECIAL LIQUID PROPANE FUEL SYSTEM MAINTENANCE ON THE GM 1.6L ENGINE
Every 150 hours inspect and drain any oil build up from the LP fuel system electronic pressure regulator (EPR). During the course of normal
operation oils or “heavy ends” may build inside the chambers of the propane regulator. These oils and heavy ends may be a result of poor fuel
quality, contamination of the fuel supply chain, or regional variation in the make up of the fuel. If the build up of the oil is signicant this can
affect the function of the fuel control system. Note: Reference the Tier 2 PSI 1.6l PFI certied engine service manual form # PSI1P6LPFI-A, and
follow the procedure to drain the EPR regulator.
HYDRAULIC OIL
WARNING!
FIGURE 1
To avoid hydraulic oil injection or injury, always wear appropriate clothing and eye protection when
working with or near hydraulic system.
Check the Hydraulic Oil Level. Remove the Right Engine Access Panel (37) and look at the gauge
on the side of the reservoir. If the oil level is below the minimum level, add 10W30 motor oil until the
gauge is 3/4 full. Do not ll above maximum. Change the oil if major contamination from a mechanical
failure occurs. SERVICE NOTE: Remove the small access panel (49) directly above the reservoir to
add oil. This panel is held on by (2) wing nuts on the underside of the panel. Only ltered oil should
be added.
IMPORTANT!
This machine is equipped with an indicator light which lights if the “In Tank” oil lter requires
changing. Remove lter element from the lter cup and replace with new lter. Hydraulic lter is
found on top of the Hydraulic Reservoir (36).
Change the Hydraulic “Charge” Oil Filter (35).
Note: Oil should be warm, cold oil is thicker and may cause the light to come on intermittently until it
warms up.
revised 7/08
MAINTENANCE
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