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Use and Care Manual

ManualsBrandsJohn Deere ManualsOutdoorsZ235 42 in. 20-HP Hydrostatic Gas Zero-Turn Riding Mower
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Service Engine - 28
SERVICE ENGINE
MX50272
3. Remove dipstick (A). Wipe with clean cloth.
4. Install and tighten dipstick.
5. Remove dipstick.
6. Check oil level on dipstick. Oil must be between ADD and FULL marks.
7. If oil level is low, add oil to bring oil level no higher than FULL mark on
dipstick. Do not overfill.
8. Install and tighten dipstick.
Changing Engine Oil and Filter
1. Run engine to warm oil.
2. Park machine safely on level surface. (See Parking Safely in the
SAFETY section.)
MX50272
3. Clean area around dipstick (A) to prevent debris from falling into
crankcase.
4. Disconnect oil drain hose (B) from the side of the engine.
5. Remove the oil drain cap (C). Carefully lower the quick oil drain into an
approved container.
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6. Wipe dirt from around oil filter (D). Place a drain pan under oil filter, and
remove filter.
7. Wipe up any dripped oil from oil filter on engine pan.
8. Put a light coat of fresh, clean oil on the new filter gasket.
9. 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.
10. After oil has drained, install the drain cap (C) and attach drain hose
assembly (A) to side of engine.
11. Add oil no higher than FULL mark on dipstick. Begin with
approximately 1.6 L (1.75 qt). Do not overfill.
12. Tighten dipstick.
13. Start and run engine at idle to check for leaks. Stop engine. Fix any
leaks before operating.
14. Check oil level. Add oil if necessary.
15. Wipe up any and all surfaces of any oil drippings.
IMPORTANT: Avoid damage! Operating in extreme conditions
may require more frequent service intervals:
• Engine components may become dirty or plugged when
operating in extreme heat, dust or other severe conditions.
• Engine oil can degrade if machine is operated constantly at slow
or low engine speeds or for frequent short periods of time.
A
IMPORTANT: Avoid damage! Dirt and contamination can enter
engine when checking oil level. Clean area around dipstick before
loosening or removing.
A
B
C
D