Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any adjustments, maintenance, service, or repairs, with engine running. Stop auger. Stop engine. Remove key. Disconnect spark plug wire and secure wire away from spark plug.
4.1AUGER/IMPELLER and WHEEL DRIVE BELT ADJUSTMENT/REPLACEMENT
When operating machine release the auger/impeller clutch control. The auger/impeller should come to a complete stop in 5 seconds. If the auger/impeller does not come to a complete stop in the required time, check and adjust belt tension. Inspect belts frequently for signs of excessive wear. Observe drive belts for slippage due to wear when operating machine. If slippage does occur, adjust/replace as follows.
4.1.1. AUGER and WHEEL DRIVE CABLE ADJUSTMENT
1. Measure control cable extension from a relaxed position to full extended position. Move control lever against handle. Measure the overall length of the spring. The length of the cable spring should increase by 3/8” when the clutch control lever is depressed. See Figure 4.1.
CABLE MUST BE
SLACK WHEN
CLUTCH HANDLE IS
RELEASED
CABLE
CONNECTOR
JAM CABLE
NUT SPRING
SPRING SHOULD
STRETCH 3/8” WHEN
LEVER IS DEPRESSED
FIGURE 4.1
2.Adjust control cable by loosening jam nut at the upper end of cable. Hold threaded end of cable and then turn cable clockwise or counter clockwise until correct extension is achieved. Retighten jam nut.
IMPORTANT: DO NOT over tighten the control cables. The cables must have slack for the auger/impeller brake to function properly and for the wheel drive to
4.1.2. AUGER BELT IDLER PULLEY ADJUSTMENT
NOTE: To adjust the idler pulley and properly tension the auger belt, the auger control cable adjustment must first be loosened as described in the following step. Cable adjustment must be checked after completing the idler pulley adjustment.
1.Loosen jam nut at the end of cable. Hold threaded end of cable and then turn metal housing of cable counter clockwise until threaded portion of cable is extracted from metal housing. Reinstall 1/2” of the threaded portion of cable back into metal housing. Retighten jam nut.
2.Remove belt cover. See Figure 4.2
REMOVE
BELT
COVER
FIGURE 4.2
3.Loosen nut and bolt that secures the idler pulley. Move idler toward belt for more tension or away from belt for less tension. See Figure 4.3. Retighten bolt and nut securely.
BLOWER BELT GUIDE
(SHOULD CLEAR BELT & PULLEY 1/16” TO
1/8”)
IDLER PULLEY NUT
BLOWER IDLER
ARM
TIGHTEN
LOOSEN
BLOWER IDLER
RETURN SPRING
FIGURE 4.3
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