Maintenance, Belt Replacement, Kr T | Troy-Bilt 52067

12Section 5: Maintenance

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.

6. Thread nut (B, Figure 5-4) a few turns

back onto spindle shaft (E) to protect the

threads on the spindle shaft during the

next step.

7. Loosen the spindle shaft by placing a

wood block against the top of the nut (B,

Figure 5-4) and firmly striking the wood

3. Securely tighten the mounting nut (G,

Figure 5-6) and screw in the idler pulley (I).

4. Securely tighten the idler arm mount-

ing screw (S, Figure 5-6). After tighten-

ing, check that idler arm is free to rotate.

If not, remove idler arm and check for de-

bris that may be interfering with freedom

block with a hammer.

8. Remove the nut from the spindle shaft

and then remove the spindle shaft (E,

Figure 5-5) and entire spindle head as-

sembly (F) from the bottom of the deck.

Slip the belt off the spindle head pulley (P).

9. Disconnect the idler arm spring (R,

of movement.

5. Look at the spindle head mounting

hole (O, Figure 5-6) and note the grooves

that are cut into the inner sides of the

hole. These grooves were formed by the

splines on the spindle shaft (E, Figure 5-5).

Figure 5-5

Figure 5-6) from the hole in the idler arm (T).

10. Using a 1/2" wrench, loosen the idler

arm mounting screw (S, Figure 5-6) two

full turns.

11. Using a 9/16" wrench and a 7/32" hex

(Allen) wrench, loosen the mounting nut

KR T

(G, Figure 5-6) and screw on the idler

pulley (I) a few turns, or until belt is free

to slip out between pulley and belt guide

(J). Remove belt.

12. Loosen rear belt guide screw (K,

Figure 5-6) enough to allow belt to be re-

moved from engine pulley (L). Remove

belt from unit.

Belt Replacement

L	J

I G

Figure 5-6

1.Install belt on engine pulley (L, Figure 5-6) and retighten rear belt guide screw

(K) securely.

2.Route belt between idler pulley (I, Figure 5-6) and belt guide (J), to inside of brake arm (M), and next to die-cast belt guides (N).

6.Install the belt on the spindle head

pulley (P, Figure 5-5) and insert the spin- dle shaft (E) (with attached spindle head assembly) into the spindle head mount- ing hole (O, Figure 5-6). Rotate the spin- dle head assembly to align the splines on the spindle shaft with the grooves in the mounting hole. Check that the belt is still in the pulley groove and is to the inside of the die-cast belt guides (N, Figure 5-6).

7.Using a firm push on the spindle head assembly (Figure 5-6A), seat the spindle head assembly into the hole. Check that the threaded end of the spindle shaft is protruding through the bottom of the hole.

8.Reinstall the flat washer (D, Figure 5- 4), belleville washer (C) and nut (B) on the spindle shaft. Note that the dished-in side of the belleville washer must face the flat washer. Tighten the nut securely (torque to 50 ft./lbs.), while checking fre- quently to ensure that the spindle head rotates freely. If the spindle head binds, it could be due to the belt being pinched between the spindle head and the belt guides. If so, remove the spindle head assembly and repeat steps 5-7.

9.Replace plastic plug (A, Figure 5-4).