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.
4.3.6.CHECKING MOWER BLADE STRAIGHTNESS
(Continued From Previous Page) (Checking the 33” Deck Blade)
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, blade is bent and must be replaced with new blade.
BLADE TIP
3/8”
DECK LIP
MARK
BLADE
ENDS
3/8” FROM BLADE TIP TO OUTER DECK LIP
FIGURE 4.6
(Checking The 38” Deck Blades) NOTE: Follow Steps 1 thru 4 for all deck sizes.
11.Mark each blade’s tips as “A” and “B”. See Figure 4.7.
12.Rotate both blades until blade cutting edges “A” are at their closest point.
13.Measure the distance between both “A” blade cutting edges and deck. See Figure 4.7.
MARK BLADE
TIPS “A” & “B”
FIGURE 4.7
14.Rotate blade until blade cutting edges “B” are together. See Figure 4.8.
15.If the measurements differ by more than 1/16” between either set of blade tips, one or both blades are bent and must be replaced with new blades.
MEASURE FROM BLADE
TIPS TO DECK
XX + 1/16”
FIGURE 4.8
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