Toro 03638 Operator's Manual page 14

Use the following chart to determine which bedknife is best suited for the desired height of cut.
Bedknife
Low HOC (Optional)
EdgeMax® Low HOC
(Model 03641)
Extended Low HOC
(Optional)
Extended EdgeMax® Low
HOC (Optional)
EdgeMax®
(Models 03638 and 03639)
Standard (Optional)
Heavy Duty (Optional)
* Warm-season grasses may require the Low HOC bedknife for 12.7 mm (0.500 inch) and below.
1. Bedknife lip height
Adjusting the Turf-Compensation
Settings
The turf-compensation spring transfers the weight
from the front to the rear roller. This helps to reduce
a wave pattern in the turf, also known as marcelling
or bobbing.
Important:
Make the spring adjustments with the
cutting unit mounted to the traction unit, pointing
straight ahead and lowered to the shop floor.
1. Make sure that the hairpin cotter is installed in
the rear hole in the spring rod
Bedknife/Height of Cut Chart
Part No.
110-4084
137-0832
120-1640
119-4280
137-0833
108-9096
110-4074
Figure 18
(Figure 19).
Bedknife Lip Height
5.6 mm
(0.220 inch)
5.6 mm
(0.220 inch)
5.6 mm
(0.220 inch)
5.6 mm
(0.220 inch)
6.9 mm
(0.270 inch)
6.9 mm
(0.270 inch)
9.3 mm
(0.370 inch)
g006510
1. Turf-compensation spring
2. Hairpin cotter
2. Tighten the hex nuts on the front end of the
spring rod until the compressed length of the
spring is 15.9 cm (6.25 inches)
Note:
When operating the machine on rough
terrain, decrease the spring length by 12.7 mm
(1/2 inch).
Note:
The turf-compensation setting will
need to be reset if the HOC setting or the
aggressiveness-of-cut setting is changed.
14
Height of Cut
6.4 to 12.7 mm
(0.250 to 0.500 inch)
6.4 to -12.7 mm
(0.250 to 0.500 inch)
6.4 to 12.7 mm
(0.250 to 0.500 inch)
6.4 to 12.7 mm
(0.250 to 0.500 inch)
9.5 to 38.1 mm
(0.375 to 1.50 inches)*
9.5 to 38.1 mm
(0.375 to 1.50 inches)*
12.7 to 38.1 mm
(0.500 to 1.50 inches)
Figure 19
3. Spring rod
4. Hex nuts
(Figure
g027169
19).