Toro 20351 Quality Guide - Page 28

Service Dealer°s Guide to Great Quality of Cut,

Get Toro 20351 - High Wheel CARB Walk Power Mower PDF manuals and user guides View all Toro 20351 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 28 highlights

Checking and Adjusting the Blade Level 5. Using a 1-inch wrench or socket, slowly rotate the left side adjusting nut down to raise the front of the mower and up to lower it. 6. Slowly rotate the right side adjusting nut until both nuts are in the same position. Note: If the adjusting nut does not stay in position, tighten the center bolt and locknut and repeat steps 4 and 5. 7. If the 1/4 to 5/8 inch (6-16mm) pitch cannot be achieved by rotating the adjusting nuts, move the mower pivot mount at the front of the mower housing (Figure 42). Note: Some models only have one pair of holes to select from. If the model you are working on only has one hole and the front-to-rear pitch is still out of specification, go back to the basics. Check the tire pressure and inspect for a worn or damaged chassis or suspension component. 38-inch (96.5cm) Cutting Unit The blade pitch for a 38-inch (96.5cm) mower is correct when the blade in front is 1/8-3/8 inch (3.5-10.5mm) lower in front than in the rear. If adjustment is necessary proceed as follows. 1. Verify that the mower is level side to side. If not adjust that first. 2. Measure the length of the rod extending out the front of the adjusting block on the sides of the chassis (Figure 43). If the rod length is not 5/8 inch (16mm), remove the hairpin cotter and washer from the end of the rod and turn the rod until the 5/8 inch (16mm) dimension is obtained. Then install the end of the rod into the hole in the mower mount and secure it in place with the washer and hairpin cotter. Repeat this procedure on the other side. 1. Mower pivot 2. Shoulder bolt Figure 42 3. Locknut 4. Mower XL32pit4.TIF 8. Remove the shoulder bolts and lock nuts from the mower. Installing the bolts in a higher hole will lower the blade and using a lower hole will raise it. 9. Repeat the front-to-rear adjustment steps 3-7. 10. Once the front-to-rear pitch is within specification, recheck the side-to-side adjustment (see "Adjusting Side-to-Side Level-All Cutting Units" on page 4-10). 11. Once the front-to-rear pitch and side-to-side level are within specification, continue by checking and adjusting the blade tracking (see "Adjusting Blade Tracking" on page 4-14). Figure 43 XL38pit1.TIF 1. Hairpin cotter and washer 2. Leveling bracket 3. Adjustment block 4. Long rod 3. Recheck the front-to-rear pitch. If it is not within specification, proceed to step 4. 4 - 12 Service Dealer's Guide to Great Quality of Cut

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
4 - 12
Service Dealer°s Guide to Great Quality of Cut
Checking and Adjusting the Blade Level
5.
Using a 1-inch wrench or socket, slowly rotate the
left side adjusting nut down to raise the front of the
mower and up to lower it.
6.
Slowly rotate the right side adjusting nut until both
nuts are in the same position.
Note:
If the adjusting nut does not stay in position,
tighten the center bolt and locknut and repeat
steps 4 and 5.
7.
If the 1/4 to 5/8 inch (6-16mm) pitch cannot be
achieved by rotating the adjusting nuts, move the
mower pivot mount at the front of the mower
housing (Figure 42).
Note:
Some models only have one pair of holes to
select from. If the model you are working on only
has one hole and the front-to-rear pitch is still out
of specification, go back to the basics. Check the
tire pressure and inspect for a worn or damaged
chassis or suspension component.
Figure 42
XL32pit4.TIF
8.
Remove the shoulder bolts and lock nuts from the
mower. Installing the bolts in a higher hole will
lower the blade and using a lower hole will raise it.
9.
Repeat the front-to-rear adjustment steps 3-7.
10.
Once the front-to-rear pitch is within specification,
recheck the side-to-side adjustment (see
±Adjusting Side-to-Side Level³All Cutting Units²
on page 4-10).
11.
Once the front-to-rear pitch and side-to-side level
are within specification, continue by checking and
adjusting the blade tracking (see ±Adjusting Blade
Tracking² on page 4-14).
38-inch (96.5cm) Cutting Unit
The blade pitch for a 38-inch (96.5cm) mower is correct
when the blade in front is 1/8-3/8 inch (3.5-10.5mm)
lower in front than in the rear. If adjustment is
necessary proceed as follows.
1.
Verify that the mower is level side to side. If not
adjust that first.
2.
Measure the length of the rod extending out the
front of the adjusting block on the sides of the
chassis (Figure 43). If the rod length is not
5/8 inch (16mm), remove the hairpin cotter and
washer from the end of the rod and turn the rod
until the 5/8 inch (16mm) dimension is obtained.
Then install the end of the rod into the hole in the
mower mount and secure it in place with the
washer and hairpin cotter. Repeat this procedure
on the other side.
Figure 43
XL38pit1.TIF
3.
Recheck the front-to-rear pitch. If it is not within
specification, proceed to step 4.
1.
Mower pivot
2.
Shoulder bolt
3.
Locknut
4.
Mower
1.
Hairpin cotter and
washer
2.
Leveling bracket
3.
Adjustment block
4.
Long rod