Case 621G Stage IV, Original Instructions Manual

Page: 289 / 430

7 - MAINTENANCE
Fuel pre-filter - Replace
WARNING
Fuel vapors are explosive and flammable.
Do not smoke while handling fuel. Keep fuel away from flames or sparks. Shut off engine and remove
key before servicing. Always work in a well-ventilated area. Clean up spilled fuel immediately.
Failure to comply could result in death or serious injury.
W0904A
Change the pre-filter every 500 hours or more often if conditions so require or if fuel quality is poor.
Prior operation:
Park the machine on a firm, level surface. Lower the attachment to the ground. Apply the parking brake, and install
the transport service link to prevent unexpected articulation movements.
Drain fuel prefilter condensation
1. Open the engine hood. Locate the pre-filter on the
right-hand side of the machine.
2. Remove the connector. Open the drain valve on the
fuel pre-filter by turning counterclockwise two or three
turns. Drain the water and/or contaminants from the
pre-filter into a suitable container until clean fuel flows.
Do not allow fuel to spill on engine or ground.
3. Turn the pre-filter counterclockwise to remove.
4. Replace with a new pre-filter cartridge, turning clock-
wise until the cartridge meets the pre-filter head. Hand
tighten firmly in place. Do not use a wrench to tighten.
Replace the connector at the bottom of the pre-filter.
5. Use the pump at the top of the pre-filter to bleed air from
the fuel system. Pump until fuel flows out of the bleed
screw without air bubbles.
RCPH10WHL900AAH
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