JT40/JT40 All Terrain Operator’s Manual Service - 221
500 Hour
500 Hour
Change Engine Oil and Filter
Change engine oil and filter every 500 hours. Drain
oil (3), change filter (4), and add 11.5 qt (10.9 L) of
DEO at fill (1). Run engine and check oil level at
dipstick (2). Add oil to bring level to highest line on
dipstick.
Change Hydraulic Filters (Normal
Conditions)
Change hydraulic filter every 500 hours. Change
filter more often if indicated by filter indicator.
Location Task Notes
DRILLING
UNIT
Change engine oil and filter DEO
Change hydraulic filters Normal conditions
Change hydraulic fluid THF
Change fuel filters
Inspect radiator cap
IMPORTANT: See “Recommended Lubricants/
Service Key” on page 202.
IMPORTANT: If hydraulic system must be
opened for repair, install new filter (p/n 153-791)
for first 50 hours of operation. If this filter
becomes plugged in fewer than 20 hours,
replace with new filter. After 50 hours of normal
operation, replace with new filter (p/n 153-792).
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