Drive Belt, Removal And Replacement; Drive-Belt Alignment; Drive Chain, Removal And Replacement; Drive - Chain Adjustment - AMF MARK 23 (SD18E24A) Parts And Service Manual

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4. When properly adjusted, tighten locknut on ad-
justment bolt securely and r eplace cover plate.
BRAKE ADJUSTMENT
Remove the hood assembly and proceed as follows:
1. Remove cotter pin and tighten castellated nut on
brake arm until the brake pad just clears the driven
pulley (figure 3). Reinstall cotter pin.
2. If brake is too tight, reverse the procedure.
DRIVEN CLUTCH REMOVAL AND REPLACEMENT
1. Remove hood assembly.
2. Remove clutch guard and drive belt. Refer to
previous procedure.
3. Remove drive chain. Refer to previous pro-
cedure.
4. Remove the spacer washer between the sprocket
and bearing.
5. Disconnect the brake cable by loosening the screw
on the brake. Remove the cable and spring.
6. Remove the screws, spacers and nuts securing
the disc-caliper brake components.
7. Remove the driven clutch assembly. The outer
bearing will be released.
8. Remove the inner bearing and grease seal.
Figure 4
3
9. Replacement is the reverse of removal. Pack the
bearings in the chain-adjusting cam with No.2, lithium
bearing grease.
10. During reassembly, follow drive - belt and d r iving
chain adjustment procedures.
TRACK GROUP
TRACTION-BELT TENSION ADJUSTMENT
Traction-belt tension should be checked regularly . A
properly tensioned belt should have a 1- to 1-1/ 4-inch
sag at the approximate top center of the belt. This
dimension is determined as follows :
1. Place the
s led on a clean, flat surface.
2. Place a sufficiently long, s traight bar along the
top surface and near the edge of the traction belt (see
figure 5) . Check for the 1- to 1- 1/4- inch sag at the
approximate center between the drive and idler shafts.
Repeat this procedure on the opposite side and note the
difference in belt tension.
3.
If
adjustment is necessary, loosen locknuts (1,
figure 6) sufficiently to permit movement of belt-
adjusting angle (2).
4.
If
measurement exceeds 1-1/4 inches, turn ad -
justing screw (3) clockwise to tighten belt tension . If
measurement is less than 1 inch, turn adjusting screw
(3) counterclockwise to relieve tension. Adjust both
sides equally to maintain proper belt alignment.
5. Set sled on kickstand.
WARNING
Do not run Ski-Daddler engine in an en -
closed area unless properly ventilated.
TRACTION BELT
Figure 5