Assembly Of Torque Spring Set - Toro Workman 3000 Series Service Manual

Assembly of Torque Spring Set

If the torque spring set has been disassembled or parts
replaced, reassemble and adjust the torque spring set
using the following procedure.
IMPORTANT: The torque spring set has been ad­
justed and sealed at the factory. Do not remove,
disassemble or adjust this device unless necessary.
The torque spring set adjustment is very sensitive.
Improper adjustment can vary fuel delivery to under
power or over fuel the engine.
1. Assemble the torque spring set as shown in
Figure 37.
2. Use a screwdriver operated by fingertips to lightly
tighten adjustment screw until resistance to rotation is
felt. Lightly lock the screw in position with locknut.
3. Set dial on spring scale to zero (0). Tighten spring
+10
case until a value of 1270
the spring case in that position with special nut.
4. Temporarily loosen adjustment screw until to get a
value of 1070 grams then retighten the screw until a
+0
value of 1270 grams is attained. Lock the adjust­
– 10
ment screw in position with locknut.
5. To inspect torque spring set for proper adjustment,
use a test set up as shown (Fig. 38). Gradually push
scale against torque spring set until stopper is moved
(or pointer of dial indicator moves). Check that load
a p p l i e d t o t o r q u e s p r i n g a t t h a t m o m e n t i s
+20
1250 grams.
–30
Workman 3300-D/4300-D
grams is obtained. Lock
– 0
Page 4 - 49
Figure 37
Figure 38
Liquid Cooled Diesel Engine