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.
4.3.5. BLADE BRAKE ADJUSTMENT
The SNAPPER YARD CRUISER is equipped with an electric clutch/brake that should stop blade rotation in 5 seconds or less after being turned off. If blades continue to rotate longer than 5 seconds, adjustment or replacement is required. When properly adjusted, a .010” to .012” feeler gauge will fit thru the three inspection slots located on the side of the clutch as shown. See Figure 4.5. Excessive clearance can adversely affect the function of the clutch and produce blade stop times over 5 seconds. To adjust, turn the three adjusting nuts clockwise to reduce clearance. The clearance at each of the three slots must be set the same.
ADJUSTING | INSPECTION |
NUT (3) | SLOT (3) |
.010” TO .012”
FEELER
FIGURE 4.5
WARNING
Blades must stop rotating in 5 seconds or less after blades have been turned off. DO NOT operate machine until blade brake has been adjusted or repaired and is functioning properly. Contact your SNAPPER dealer for assistance.
4.3.6. ADJUSTING MOWER BLADE
The straightness of the mower blade(s) is essential for smooth, even mowing. Adjust blade straightness as follows.
1.Make sure fuel cap is on tight. Turn fuel shut off valve (If equipped) to the “CLOSED” position. Start engine and allow it to run until engine runs out of fuel. Close vent on fuel filler cap. Refer Figure 2.3.
2.Remove key from ignition switch.
3.Remove spark plug wire(s) and secure away from spark plug(s).
4.Carefully stand YARD CRUISER on rear bumper.
5.Select a point on the deck and mark for reference.
6.Mark blade tips as “A” and “B”.
7.Rotate blade until blade tip “A” is at deck reference mark.
8.Measure the distance between deck lip and blade tip. NOTE: On 33” decks, the measurement between the blade tip and deck lip should be 3/8”. See Figure 4.6.
9.Repeat step 8 with blade tip “B”.
10.If measurement between blade tips and deck are different and there is more than 1/16” difference between blade tip measurements, adjust blade as follows:
a.Loosen
b.Adjust jackscrews “IN” or “OUT” until blade tip measurements are within 1/16” of each other and blade tips are 3/8” away from deck lip. See Figure 4.7.
c.Retighten
BLADE TIP
3/8”
DECK LIP
MARK
BLADE
ENDS
3/8” FROM BLADE TIP TO OUTER DECK LIP
FIGURE 4.6
JACKSCREWS
JAM NUTS
FIGURE 4.7
18
