Download Manual - Scag Power Equipment

Section 6-NOTE-If you turn the nut too much, you will compressthe spring, making too much end play.Go to step 4.4. If the drive wheels rotate in rearward travel direction,turn the adjustment bolt (Figure 6-1) clockwise untilrotation stops. If the drive wheels rotate in the forwardtravel direction, turn the adjusting bolt counterclockwiseuntil rotation stops.5. Check the adjustment of the right foot pedal for fullforward speed. The bottom of the foot pedal should be1/4 inch from the top of the foot plate (See Figure 6-1)when the pump is stroked in the full forward position.To make an adjustment, loosen the jam nut at thepump control bellcrank (Figure 6-1). Depress the footpedal and turn the control rod until 1/4 inch is obtainedbetween the bottom of the foot pedal and the top of thefoot plate. Tighten the jam nut.6. Start the engine. The drive wheels should rotate onlywhen the forward/reverse foot pedal is depressed.6.3 THROTTLE CONTROL LINKAGEADJUSTMENTShould the throttle control lever not stay inposition after moving it to increase or decrease theengine speed, the throttle linkage must betightened. Hold the lock nut (Figure 6-2) with a wrenchwhile turning the bolt clockwise to tighten the throttle leveragainst the friction plate. Do not overtighten as the controllever will be hard to move.BoltFigure 6-2 Throttle Control Adjustment6.4 CUTTER BRAKE LINKAGEThe cutter brake linkage is self-adjusting. If the brake willnot hold the cutter blades from turning, consult your Scagdealer. Do not operate the mower if the cutter brake is notfunctioning properly.6.5 FAN BELT ADJUSTMENTLocknut1. Remove the pump belt guard to gain access to the fandrive idler bracket.2. Loosen the two bolts (A and B, Figure 6-3). Using a3/8 inch ratchet wrench installed in hole C, rotate thebracket until 1/2 inch deflection in the belt is observedusing 10 pounds of pressure on the belt. See EngineDrive Belts, section 7.9 for checking method.If the engine speed must be increased or decreased, consultyour Scag dealer.ABCFigure 6-3 Fan Belt Adjustment21