Snapper SZT18336BVE User Manual

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Section 4 - ADJUSTMENTS & REPAIR 
 
WARNING 
DO NOT attempt any adjustments, maintenance, 
service or repairs with the engine running. Stop 
engine. Stop blade. Engage parking brake. Remove 
key. Remove spark plug wire from spark plug and 
secure away from plug. Engine and components are 
HOT. Avoid serious burns, allow all parts to cool 
before working on machine. Fuel Filler Cap and Vent 
must be closed securely to prevent fuel spillage. 
Wear heavy leather gloves when handling or working 
around cutting blades. Blades are extremely sharp and 
can cause severe injury. DO NOT use a cutting blade 
that shows signs of excessive wear or damage. 
 
4.4 
WHEEL BRAKE ADJUSTMENT  
Adjust the wheel brake if wheels turn when parking 
brake is engaged. Adjust the wheel brake by turning 
wheel brake adjusting nut clockwise to increase 
braking action or counter clockwise to decrease 
braking action. See Figure 4.14. 
 
FIGURE 4.14 
 
4.5  MOWER BLADE REPLACEMENT 
4.5.1.  BLADE WEAR LIMITS 
1.  
Inspect blade frequently for signs of excessive 
wear or damage. See Figure 4.15. 
 
FIGURE 4.15 
 
4.5.2. BLADE 
SHARPENING 
1. Close vent in fuel cap and make sure cap is 
tight.  See Figure 2.2. 
2.  Remove key from ignition switch. Engage parking 
brake. 
3.  Remove spark plug wire(s) and secure away from 
spark plug(s). 
4.  Raise cutting deck to highest setting. 
5.  With a floor jack, carefully raise front of machine to 
gain easier access to under deck.  Block machine 
securely. 
6.  Remove blade(s).  See Figure 4.16. 
7.  Inspect condition of blade.  See Figure 4.14. 
8.  If blade is in good condition, sharpen at 22 to 28 
degrees. DO NOT sharpen beyond existing cutting 
edge.  See Figure 4.17. 
9. 
Check blade balance after sharpening. If 
necessary, correct blade balance by grinding the 
heavy end of blade. 
10.Reinstall blade. See Figure 4.16. Torque blade 
mounting bolts to recommended range of: 
33” Deck - 30 to 40 ft. lbs.  
38” Deck - 80 to 90 ft. lbs.  
 
FIGURE 4.16 
 
FIGURE 4.17 
UNDERSIDE VIEW OF MACHINE 
ADJUST 
COUNTER- 
CLOCKWISE TO 
DECREASE 
BRAKE 
ADJUST 
CLOCKWISE 
TO INCREASE 
BRAKE 
WHEEL BRAKE 
ROD 
ELECTRIC 
CLUTCH 
NEW BLADE 
WEAR LIMIT 
(NOTCH STARTS) 
DANGEROUS CONDITION! 
DO NOT USE ON MOWER! 
REPLACE WITH NEW BLADE. 
33” DECK 
38” DECK 
DO NOT SHARPEN 
BEYOND ORIGINAL 
CUTTING EDGE 
BLADE TIP 
ORIGINAL CUTTING EDGE 
22º TO 28º