21
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.
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.
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.
FIGURE 4.8
BLADE TIP
3/8”
DECK LIP
MARK
BLADE
ENDS
3/8” FROM BLADE
TIP TO OUTER DECK
LIP
MARK BLADE
TIPS “A” & “B”
MEASURE FROM BLADE
TIPS TO DECK
X
X + 1/16”
