JLG 4394RT Service Manual - Manual (Page 134)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3-98 – JLG Lift – 3121249
5. Oil level must be between the "FULL" and "ADD"
marks.
6. If the oil level is below the "ADD" mark, proceed to
Step 7 and 8 and reinstall the dipstick into the dip-
stick tube.
7. Remove the oil filter cap from the valve rocker arm
cover.
8. Add the required amount of oil to bring the level up
to but not over "FULL" mark on the dipstick.
9. Reinstall the oil fill cap to the valve rocker cover and
wipe away any excess oil.
Changing The Engine Oil
WHEN CHANGING THE OIL, ALWAYS CHANGE THE OIL FILTER.
CHANGE OIL WHEN THE ENGINE IS WARM FROM OPERATION
AS THE OIL WILL FLOW FREELY AND CARRY AWAY MORE
IMPURITIES.
To change the oil use the following steps:
1. Start the engine and run until it reaches normal
operating temperature.
2. Stop the engine.
3. Remove the drain plug and allow the oil to drain.
4. Remove and discard the oil filter and its sealing ring.
5. Coat the sealing ring on the filter with clean engine
oil and wipe the sealing surface on the filter
mounting surface to remove any dust, dirt and
debris. Tighten the filter securely (follow the filter
manufacturer’s instructions). Do not over tighten.
6. Check the sealing ring on drain plug for any dam-
age. Replace if necessary. Wipe the plug with a
clean rag and wipe the sealing surface on the pan
and reinstall the pan plug. Do not over tighten.
7. Fill the crankcase with oil.
8. Start the engine and check for oil leaks.
9. Stop the engine and check the oil level to ensure the
oil level is at "FULL".
10. Dispose of the oil and filter in a safe manner.
Engine Tray
Figure 3-43. Engine Oil Dip Stick
1,2,3
1. Bolt, 5/8"-11NC x 2"
2. Nut
3. Washer
NOTE: When servicing the engine and components,
remove the bolt (1), nut (2) and washer (3) to
swing the engine tray out for better access (as
shown below).
Figure 3-70. Engine Tray Swing