Troy-Bilt TB4000 User Manual

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1. Unplug spark plug boot to eliminate starting

2. Remove the oil fill plug/dipstick.

3. Pour the oil out of the oil fill hole and into a con-

tainer by tipping the unit to a vertical position 
(Fig. 6-11). 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 3.4 fluid oz (100 ml) of

SAE 30 SF, SG, SH oil. Use the bottle and spout
from initial use to measure the correct amount. 

6. Replace the oil fill plug/dipstick.

7. Reconnect spark plug boot. 

Clean and re-oil the air filter every 10 hours of opera-
tion. It is an important item to maintain. Not maintain-
ing the air filter will VOID the warranty.

1. Remove the air filter cover by pulling up the two

tabs on the bottom back of the cover, then pull out
and up (Fig. 6-12).

2. Remove the air filter (Fig. 6-12).

3. Wash the filter in detergent and water. Rinse the 

filter thoroughly and allow it to dry.

4. Apply enough clean SAE 30 motor oil to lightly coat

the filter (Fig. 6-13).

5. Squeeze the filter to spread and remove excess oil

(Fig. 6-13).

6. Reinstall the filter (Fig. 6-14).

7. Reinstall the air filter cover by positioning the notch

on top of the air filter cover onto the tab at the top
of the back plate (Fig. 6-12).

8. Using two fingers on either side of the air filter

cover and back plate, squeeze together until the
cover snaps into place (Fig. 6-12).