Service Manual Instruction Manual

SECTION 5 - HYDRAULICS
5-26 – JLG Lift – 3121171
5.5 HYDRAULIC RETURN FILTER
Check the hydraulic return filter indicator with the hydraulic oil
at normal operating temperature and the engine running.
Replace the filter element before the indicator reaches the red
filter restricted area or every 300 hours, whichever comes first.
A - Red = Filter Restricted; Filter Bypassed
B - Green = Filter Good; Not Restricted
Figure 5-29. Hydraulic Return Filter Condition Indicator - Prior to S/N 139396
Red = Filter Restricted; Filter Bypassed
Green = Filter Good; Not Restricted
Figure 5-30. Hydraulic Return Filter Condition Indicator - S/N 139396 to Present