Outboard Cutting Units; Front Cutting Unit Lift Arm Ball Joint Adjustment - Toro Groundsmaster 580-D Service Manual

Outboard Cutting Units

1. Remove deck covers. To check belt tension, apply 8
lb. (35.5 N) force at mid--span of belt and check deflec-
tion. There should be approximately 5/16 in. (7.9 mm)
deflection. If deflection is incorrect, proceed to step 2. If
deflection is correct, proceed to step 3.
2. To tension belts, loosen flange locknut at top of idler
pulley (Fig. 10). Slide pulley against belt until proper ten-
sion is reached. Hold pulley in position and tighten lock-
nut.
3. Install deck covers.

Front Cutting Unit Lift Arm Ball Joint Adjustment

Ball joint must be threaded into each lift arm so there is a
distance of 2 in. (50.8 mm) from end of lift arm to center
line of ball joint (Fig. 11). Tighten jam nut on ball joint
against end of lift arm.
Groundsmaster 580--D
1. Jam nut
1. Idler Pulley Flange Locknut
2. Drive Belts
Rev. E
Page 7 - - 7
1
2
New belt:
3.060 in. (77.7 mm)
Old belt:
3.250 in. (82.6 mm)
3
Figure 9C
2. Tensioner Bolt 3. Slide Plate
2
Figure 10
2 in.
(50.8 mm)
Figure 11
Adjustments
1