Troy-Bilt TB525ET Operator's Manual page 14

CHECKING THE OIL LEVEL
CAUTION:
To prevent extensive engine wear
and damage to the unit, always maintain the
proper oil level in the crankcase.
The importance of checking and maintaining the proper oil
level in the crankcase cannot be overemphasized. Check oil
before each use:
1. Stop the engine and allow oil to drain into the crankcase.
2. Place the engine on a flat, level surface with the cutting
head shield hanging off a work bench or table to get a
proper oil level reading (Fig. 37).
3. Keep dirt, grass clippings and other debris out of the
engine. Clean the area around the dipstick before
removing it.
4. Remove the oil fill plug.
5. Look into the oil fill hole, use a flashlight if needed. The oil
should be just touching the inner most thread (Fig. 38).
6. If the oil level is not touching the inner most thread on the
oil fill hole, add a small amount of oil to the oil fill hole and
recheck (Fig. 38). Repeat this procedure until the oil level
reaches the inner most thread on the oil fill hole.
NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is in place on the oil fill plug
when
MaxOil Fill Line
Fig. 38
checking and changing the oil (Fig. 39).
CHANGING THE OIL
For a new engine, change the oil after the first 10 hours of
operation. Change the oil while the engine is still warm. The oil
will flow freely and carry away more impurities.
WARNING:
handling unit.
1. Unplug spark plug boot to prevent accidental starting.
2. Remove the oil fill plug.
3. Pour the oil out of the oil fill hole and into a container by
tipping the unit to a vertical position (Fig. 40). Allow ample
time for complete drainage.
4. Wipe up any oil residue on the unit and clean up any oil
that may have spilled. Dispose of the oil according to
Federal, State and local regulations.
5. Refill the crankcase with 3/8 Cups: 3.04 fl. oz. (90 ml) of
MAINTENANCE AND REPAIR INSTRUCTIONS
Fig. 37
Oil Fill Plug
O-Ring
Oil Fill Hole
Fig. 39
Wear gloves to prevent injury when
SAE 30 SF, SG, SH oil.
NOTE: Use the bottle and
spout saved from
initial use to
measure the correct
amount of oil. The
top of the label on
the bottle measures
approximately 3/8
Cups: 3.04 fl. oz.
(90 ml) (Fig. 41).
Check the level,
See Checking the
Oil Level. If the level
is low, add a small
amount of oil and
recheck. Do not
overfill (Fig. 38).
6. Replace the oil fill plug.
7. Reconnect the spark plug boot.
WARNING:
always turn the unit off and allow it to cool before
you clean or service it.
AIR FILTER MAINTENANCE
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation. It is
an important item to maintain. Failure to maintain your air filter
properly can result in poor performance or can cause
permanent damage to your engine.
1. Open the air filter cover. Push the tab on the under side of
the cover inward. Then pull the air filter cover out and up.
(Fig. 42).
Air Filter Cover
Air Filter
2. Remove the air filter (Fig. 42).
3. Wash the filter in detergent and water (Fig. 43). Rinse the
14
Fig. 40
Fill Level
Fig. 41
To avoid serious personal injury,
Tab
Fig. 42