Poulan 417920 To Replace Mower Blade Drive Belt, To Check Brake, To Replace Motion Drive Belt

SERVICE AND ADJUSTMENTS

TO REPLACE MOWER BLADE DRIVE BELT

MOWER DRIVE BELT REMOVAL (See Fig. 32)

•Park tractor on a level surface. Engage parking brake.

•Lower attachment lift lever to its lowest position.

•Disengage belt tension rod (K) from lock bracket

(L).

CAUTION: Belt tension rod is spring loaded. Have a firm grip on rod and release slowly.

•Remove screws (P) from mandrel covers (Q) and remove covers.

•Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface.

•Remove belt from electric clutch pulley (M), both mandrel pulleys (R) and all idler pulleys (S).

MOWER DRIVE BELT INSTALLATION

•Install belt around all mandrel pulleys (R) and around idler pulleys (S) as shown.

•Install belt onto electric clutch pulley (M).

IMPORTANT: Check belt for proper routing in all mower pulley grooves.

•Reassemble mandrel covers (Q). Securely tighten all screws.

•Engage belt tension rod (K) on locking bracket

(L).

CAUTION: Belt tension rod is spring loaded. Have a tight grip on rod and engage slowly.

P

Q

LM

TO CHECK BRAKE

If tractor requires more than five (5) feet to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be serviced.

You may also check brake by:

•Park tractor on a level, dry concrete or paved sur- face, depress brake pedal all the way down and engage parking brake.

•Disengage transmission by placing freewheel con- trol in “transmission disengaged” position. Pull freewheel control out and into the slot and release so it is held in the disengaged position.

The rear wheels must lock and skid when you try to manually push the tractor forward. If the rear wheels rotate, then the brake needs to be serviced. Contact a qualified service center.

TO REPLACE MOTION DRIVE BELT

(See Fig. 33)

Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest.

BELT REMOVAL -

•Remove mower (See “TO REMOVE MOWER” in this section of manual).

NOTE: Observe entire motion drive belt and position of all belt guides and keepers.

• Disconnect clutch wire harness (A).

• Remove anti-rotation link (B) on right side of trac-

tor.

• Remove belt from stationary idler (C) and clutching

idler (D).

• Remove belt from centerspan idler (E).

• Pull belt slack toward rear of tractor. Carefully re-

move belt upwards from transmission input pulley

and over cooling fan blades (F).

• Remove belt downward from engine pulley and

around electric clutch (G).

KR

R

S

P

Q

• Slide belt toward rear of tractor, off the steering

plate (H) and remove from tractor.

BELT INSTALLATION -

• Install new belt from tractor rear to front, over the

steering plate (H) and above clutch brake pedal

shaft (J).

• Pull belt toward front of tractor and roll belt around

electric clutch and onto engine pulley (G).

• Pull belt toward rear of tractor. Carefully work belt

down around transmission cooling fan and onto

the input pulley (F). Be sure belt is inside the belt

R

FIG. 32

keeper.

• Install belt on centerspan idler (E).

• Install belt through stationary idler (C) and clutch-

ing idler (D).

• Reinstall anti-rotation link (B) on right side of trac-

tor. Tighten securely.

• Reconnect clutch harness (A).

• Make sure belt is in all pulley grooves and inside

22all belt guides and keepers.