LeeBoy 8520C - Air Filter and Drive Belt Service; Air Filter Replacement Procedure; Engine Drive Belt Adjustment and Replacement

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LeeBoy 8520C Conveyor Paver 5-19
Maintenance
Change Air FilterChange Air Filter
Never operate the engine without an
air lter properly installed. Severe damage to the
machine will occur.
With extensive use, the air lter may need to be changed
more frequently. If the lter indicator gauge moves into
the red zone, clean or change the lter. (Figure 5-18)
Air Filter Cover
Figure 5-18. Air Filter Cover
To change the air lter elements:
1. Raise the hood following instructions on Page 5-5.
2. Unclamp and remove air lter cover.
3. Remove the primary and secondary air lter
elements. Discard.
4. Clean the inside of the air cleaner body with a clean
cloth.
5. Install new air lter elements inside the canister.
6. Reclamp cap onto the air lter cover.
7. Check clamps to ensure lter elements are tight and
lter elements are making proper contact.
8. Start engine. If engine does not run smoothly,
recheck lter element contact.
NOTE: The air lter elements should be replaced
every 250 service hours of normal paver
operation, but more often if the paver is
operated in severe conditions.
Engine Drive BeltEngine Drive Belt
Adjust the engine drive belt every 250 service hours and
replace it every 500 hours. Regardless of the mainte-
nance interval, the engine fan belt should be replaced if
it appears frayed or cracked. This belt drives the alter-
nator and the cooling fan.
NOTE: If the fan belt is loose or damaged, and/or the
fan is damaged, it can result in overheating
or insufcient charging. Replace the fan
belt and any other damaged components
immediately.
Engine must be turned off and the key
removed before checking, adjusting or replacing the
fan belt to avoid personal injury or even death.
To adjust or replace the belt:
1. Turn off engine and remove the key. Block the
wheels to prevent movement while working on the
machine.
2. Remove the safety shield. (Figure 5-19)
3. Apply moderate thumb pressure to the belt between
the pulleys to gauge tension.
4. If tension is incorrect, loosen the alternator
mounting bolts and place a lever between the
alternator and the engine block.
• If adjusting the belt, pull the alternator out until
the deection of the belt (when pressed in
the middle of the span) falls within .39 to .47
inches.
• If replacing the belt, remove worn belt and
replace with new fan belt.
5. Retighten the alternator bolts and reinstall safety
shield.
Fan
Belt
Alternator
Bolts
Fan
Safety
Shield
Figure 5-19. Engine Belt