Changing engine oil and filter, Cleaning air intake screen and engine fins, Service engine – John Deere la105 User Manual

Page 27

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Service Engine - 26


6. Remove dipstick.

7. Check oil level on dipstick. Oil must be between ADD and FULL marks.

8. If oil level is low, add oil to bring oil level no higher than FULL mark on
dipstick. Do not overfill.

9. Install and tighten dipstick. Lower hood.

Changing Engine Oil and Filter

1. Run engine to warm oil.

2. Park machine safely. (See Parking Safely in the SAFETY section.)

3. Lift hood.


Picture Note: Twin cylinder engine shown.

4. Put drain pan under drain valve (A).

5. Rotate and remove drain cap (B) and drain oil into oil drain pan. Allow
oil to drain completely.

6. Remove dipstick (C).


Picture Note: Twin cylinder engine shown.

7. Replace oil filter (D), if equipped.

a.Wipe dirt from around oil filter.

b.Place a drain pan or funnel under filter tray.

c.Remove old filter and filter gasket and dispose of properly. Wipe up
any spilled oil.

d.Put a light coat of fresh, clean oil on the new filter gasket.

e.Install replacement oil filter by turning oil filter to the right (clockwise)
until the rubber gasket contacts filter base. Tighten filter an additional
one-half turn.

8. Install drain cap.

9. Add oil no higher than FULL mark on dipstick. Use approximately the
amount of oil listed in the Specifications section. Do not overfill.

10. Install dipstick.

11. Start and run engine at idle to check for leaks. Stop engine. Fix any
leaks before operating.

12. Check oil level. Add oil if necessary.

Cleaning Air Intake Screen and Engine Fins

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Lift hood.


Picture Note: Twin cylinder engine shown.

3. Clean air intake screen (A), cooling fins and external surfaces with rag,
brush, vacuum or compressed air.

4. Lower hood.

IMPORTANT: Avoid damage! Change the oil more often if the
vehicle is used in extreme conditions:

• Extremely dusty conditions.

• Frequent slow or low-speed operation.

• Frequent short trips.





IMPORTANT: Avoid damage! Do not overfill. Overfilling can cause
smoking, hard starting, fouling of spark plug, and oil saturation of
air filter.


CAUTION: Avoid injury! Compressed air can cause debris

to fly a long distance.

• Clear work area of bystanders.

• Wear eye protection when using compressed air for cleaning

• Reduce compressed air pressure to 210 kPa (30 psi).

IMPORTANT: Avoid damage! An obstructed air intake screen can
cause engine damage due to overheating. Keep air intake screen
and other external surfaces of the engine, including cooling fins,
clean at all times to allow adequate air intake.


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