Exmark FrontRunner Air-Cooled - Manual (Page 36)

Maintenance
Figure 16
1. Spring idler pulley 3. Right side idler pulley
(adjustable)
2. Front of unit
Deck Belt Tension
Self-tensioning - No adjustment necessary.
Belt Guide Adjustment
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove the belt shield on the right side of mower
deck.
3. Note belt guide bolted to deck near the shield
support stud and right-hand pulley. Guide should
be 1/8 inch (3.2 mm) away from the belt, with
bolt-end of guide near end of slot (Figure 17).
4. If adjustment is necessary, loosen the bolt securing
the belt guide and make proper adjustment.
Tighten hardware.
Figure 17
1. End of slot 2. Belt guide
Brake Link Adjustment
Check to make sure brake is adjusted properly.
1. Disengage brake lever (lever down).
2. Measure the length of the spring. Measurement
should be 2 13/16 inches (7.1 cm) between
washers. (Figure 18).
3. If adjustment is necessary, adjust the nyloc nut
at the bottom of the spring to achieve 2 13/16
inches (7.1 cm).
Figure 18
1. Lever down
(disengaged) 6. Remove pin adjust rod
length for additional
brake adjustment
2. Lever up (engaged) 7. Trunnion roller
3. Nyloc nut below trunnion
roller 8. Spring retainer bracket
4. Nyloc nut below spring 9. 2.81 inches (7.1 cm)
5. 1/8 to 3/16 inch (3.2 to
4.8 mm) 10. Jam nut above trunnion
roller
Brake Adjustment
1. Check for brake link 2 13/16 inches (7.1 cm)
measurement as described in the Brake Link
Adjustment section.
2. Engage the brake lever (lever up). The space
between the brake spring bracket and the nyloc
nut under the spring should measure 1/8 inch to
3/16 inch (3.2–4.8 mm).
3. If adjustment is necessary, loosen jam nut above
the trunnion roller. Adjust the nyloc nut under
the trunnion roller until distance listed above
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