Pto Belt Replacement; Arbor Drive Belt Replacement - Simplicity 1691682 Service & Repair Manual

PTO Belt Replacement

1. Park the tractor on a smooth, level surface such as a
concrete floor. Disengage the PTO, turn off the igni-
tion, and lock the parking brake. Remove the key.
2. Remove the mower deck as described in Mower
Removal and Installation.
3. Loosen the nut and lockwasher securing the belt stop
bracket (C, Figure 10) to the idler pulley.
4. Remove the old belt and replace it with a new belt.
Make sure the V-side of the belt runs in the pulley
grooves.
5. Position the belt stop bracket (C, Figure 10) up
against arm (A) so that there is a 1/8" gap between
the pulley and the belt stop.
6. Reinstall the left hand arbor cover (D, Figure 11).
7. Run the mower under no-load condition for approxi-
mately 5 minutes to break in the new belt.

Arbor Drive Belt Replacement

1. Park the tractor on a smooth, level surface such as a
concrete floor. Disengage the PTO, turn off the
engine and lock the parking brake. Remove the key.
2. Remove the mower deck as described in Mower
Removal and Installation.
3. See Figure 11. Remove the two capscrews securing
the upstop (A) and remove the upstop.
4. Remove the four additional capscrews securing the
right-hand arbor cover (B).
5. Remove the three capscrews securing left-hand
arbor cover (D) and remove the cover.
6. Using a piece of rope and pliers, remove the idler pul-
ley spring (C) from the slot in the deck.
7. Loosen the capscrew (E) securing the idler pulley to
the bracket. The belt can be slipped between the
pulley and idler bracket hub.
8. Install a new belt as shown in Figure 11. Make sure
that the V-side of belt runs in the arbor pulley grooves
and the flat side of belt runs against the idler pulley.
9. Reassemble the deck following steps 7-2 in reverse
order.
Figure 10. Mower Belt Routing - 44" Mower Deck
A. Idler Pulley Arm
B. PTO Pulley
*1978
Figure 11. Mower Deck
A. Upstop
B. RH Arbor Cover
C. Spring
*1977
Figure 12. Mower Deck Drive Belt Routing
A. Arbor Drive Pulley (V-sided)
B. Idler Pulley (Flat-sided)
8 - 13
8 Mower Deck Repair
Belt Replacement
Left Side of Mower
C. Bracket Belt Stop
D. Left-hand Arbor Cover
E. Capscrew
V-Sided Pulley
Flat-Sided Pulley
V-Sided Pulley
V-Sided Pulley