32
washer and hairpin cotter (Fig. 40). A front hole lowers
the blade height and a rear hole raises its height. Adjust
both sides as required.
6. Check the front-to-rear blade slope; refer to Adjusting
the Front-to-Rear Blade Slope, page 32.
1
4
3
2
m–5177
Figure 40
1.
Hairpin cotter and washer
2.
Leveling bracket
3.
Front hole
4.
Rear hole
Adjusting the Front-to-Rear
Blade Slope
Check the front-to-rear blade level any time you install the
mower. If the front of the mower is more than 5/16 inch
(7.9 mm) lower than the rear of the mower, adjust the blade
level using the following instructions:
1. Position the mower on a flat surface. Disengage the
PTO, set the parking brake, stop the engine, and remove
the key. Disconnect the spark plug wire(s) from the
spark plug(s).
2. Check the air pressure of all four tires. If needed, adjust
to the recommended inflation; refer to Tire Pressure,
page 29.
3. Check and adjust the side-to-side blade level if you
have not checked the setting; refer to Leveling the
Mower from Side-to-Side, page 31.
4. Measure the length of the rear trunion rod (Fig. 41). If
the rod length is not 11-1/2 inch (29.2 cm), remove the
clevis pin and cotter pin from the end of the rod
(Fig. 41), loosen the jam nut, and turn the yoke until the
11-1/2 inch (29.3 cm) dimension is obtained. Then
secure the yoke with the clevis pin and cotter pin.
Repeat this procedure on the opposite side of the
mower.
2
3
m–5177
1
11-1/2 inch
(29.2 cm)
4
Figure 41
1.
Rear trunion rod
2.
Clevis pin and cotter pin
3.
Jam nut
4.
Yoke
5. Set the height-of-cut at 3 inch (76 mm) and carefully
rotate the blades so they are facing front to rear
(Fig. 42).
6. Measure between the tip of the front blade (Fig. 42) and
the tip of the rear blade to the flat surface. If the front
blade tip is not 1/16–5/16 inch (1.6–7.9 mm) lower than
the rear blade tip, adjust the front trunion rods.
Front
1078
1
2
3
4
4
Figure 42
1.
Blade front to rear
2.
Measure front blade tip
3.
Measure rear blade tip
4.
Measure here
7. To adjust the front-to-rear blade slope, remove the
hairpin cotter from the front trunion yokes and loosen
the jam nuts (Fig. 43).
