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JT5 Operator’s <strong>Manual</strong> Service - 137<br />
50 Hour<br />
50 Hour<br />
Location Task Notes<br />
DRILLING<br />
UNIT<br />
Change engine oil and filter<br />
Change drilling fluid pump oil (initial)<br />
Clean drilling fluid pump strainer<br />
Check radiator<br />
Change hydraulic filter<br />
Check rotation gearbox oil level<br />
Inspect thrust rollers<br />
Check battery<br />
Initial service, DEO<br />
EO<br />
Initial service<br />
2 gearboxes, MPL<br />
Drilling Unit<br />
Change Engine Oil and Filter (Initial)<br />
Change engine oil after 50 hours while oil is warm<br />
and with unit parked on level ground.<br />
1. Open drain (3).<br />
2. Replace filter (4).<br />
3. Close drain.<br />
4. Add DEO at fill (2) until oil level is at highest<br />
line on dipstick (1).<br />
IMPORTANT: Use oil specified in temperature<br />
chart found in “Recommended Lubricants/<br />
Service Key” on page 130.<br />
CMW
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