Gradall 544D-10 (9136-4142) Operation Manual - Manual (Page 41)

Form No. 20220 z z z z z 544D-10 Owner/Operator Manual
14.0
1. Operate unit until hydraulic oil reaches normal operating temperature.
2. Apply parking brake, lower boom to ground and shift Forward/Reverse lever
to “Neutral.” Observe Hydraulic Filter Bypass Indicator with engine running
at full throttle. Replace filter elements if necessary.
3. Obtain a container to receive waste oil and a CLEAN container to receive oil
sample.
4. With gauge removed from hose, attach mini-check and hose to test port
near right wall of engine compartment. Hose end must be positioned in
waste oil container.
5. Allow at least one pint of oil to flow into waste oil container to eliminate any
contamination from hose.
6. Move hose to CLEAN container to collect sample for analysis.
7. Return hose to waste oil container and disconnect adapter from mini-check
test port.
8. Cover sample container immediately with CLEAN cap.
9. Stop engine and check oil level in reservoir and replenish as required.
10. Contact your GRADALL Distributor for information concerning oil analysis.
Oil sample containers are available from several sources:
• Oil companies
• Oil suppliers
• Sampling labs
OBTAINING HYDRAULIC OIL SAMPLE
NOTE!
OIL CLEANLINESS IS CRITICAL
The filtration system is designed
to maintain a minimum ISO
cleanliness level of 18/15.
TAKE HYDRAULIC SAMPLE
FROM THIS PORT