Troy-Bilt 52067 - 5HP owner manual INSPECTING/REPLACING Drive Belt, Belt Inspection, Belt Removal

Section 5: Maintenance 11

WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models.

Failure to follow these instructions can result in serious personal injury or property damage.

A

B

Figure 5-2: Belt tension adjustment.

REMOVING AND REPLACING TRIMMER HEAD

1.Stop the engine and wait for all mov- ing parts to stop. Disconnect spark plug wire and move it away from the spark plug. Remove the ignition key on electric start models.

2.Two bolts (A, Figure 5-3) secure the trimmer head (B) to the spindle head (C). Loosen both bolts (not the nuts) just enough to open up the trimmer head and allow it to slide down the spindle head and past the two stops. Do not attempt to remove the bolts completely – they are permanently attached.

NOTE: It may be necessary to first re- move the wear cup (D, Figure 5-3) when removing the trimmer head. See Step 4 for the procedure.

3.Install the new trimmer head on the spindle head. Tighten the hardware se- curely (to 75 in/lbs.) and evenly.

4.If the wear cup (D, Figure 5-3) is also worn, replace it. Use a 1/2" socket wrench to remove the screw (E, Figure 5- 3) and washer (F). Install the new wear cup and reinstall the washer and screw. Tighten the screw securely.

C

B

A

D

F

E

Figure 5-3

INSPECTING/REPLACING

DRIVE BELT

The drive belt should not require inspec- tion for many hours of operation. If re- placement becomes necessary, follow the instructions given here.

Belt Inspection

1.Stop the engine and let all moving parts stop. Disconnect spark plug wire and move it away from spark plug. Allow engine to cool. Remove the key on elec- tric start models.

2.For convenience, we recommend that you place the unit on a raised platform to make access to the underside of the deck as easy as possible.

3.Examine the belt. Feed it around the rear (engine) pulley so the entire belt can be examined. If cracks or other damage are noted, a new belt is needed.

Belt Removal

1.Stop the engine and wait for engine to cool. Disconnect the spark plug wire and move it away from the spark plug.

Remove the ignition key on electric start models.

2.Remove gasoline from fuel tank.

DANGER

GASOLINE IS HIGHLY FLAMMABLE AND ITS VAPORS ARE EXPLOSIVE.

•Drain fuel into approved container outdoors, away from open flame.

•Be sure engine and muffler are cool before draining gasoline.

•Do not smoke.

Failure to comply can result in serious personal injury and property damage.

3.Carefully tip unit on its left side and secure it in place.

4.Remove the plastic plug (A, Figure 5- 4) from the top of the mower deck.

5.Using a 3/4" socket wrench, remove nut (B, Figure 5-4), belleville washer (C) and flat washer (D) from spindle shaft (E).

A

B

C

D

E

Figure 5-4