Separating Cutting Unit From Traction Unit - Toro Groundsmaster 300 Series Service Manual

Separating Cutting Unit From Traction Unit (Fig. 29)
1. Position machine on level surface, lower cutting unit
to the shop floor, shut engine off and engage parking
brake.
2. Disconnect three (3) hydraulic lines at mounting
bracket, located next to traction pedal, using quick
disconnects. Immediately put attached rubber plugs in
disconnects on both the traction unit and deck hoses.
3. Remove PTO shield from top of cutting unit and set
shield aside.
4. Drive roll pin out of yoke and input shaft of gear case.
Loosen capscrews and nuts securing yoke to shaft.
Slide yoke off the input shaft. If traction unit will be used
without the cutting unit, drive roll pin out of yoke at PTO
pivot shaft and remove entire universal shaft from trac-
tion unit.
DANGER
Do not start the engine and engage the PTO
lever when PTO shaft is not connected to gear
case on cutting unit. If engine is started and
PTO shaft is allowed to rotate, serious in ury
could result.
5. Disconnect spring from lift cylinder cotter pin. Re-
move cotter pins and clevis pins securing lift chains to
lift arm.
WARNING
Since the right hand push arm is spring ­
loaded to approximately 100 pounds and left
hand push arm is spring-loaded to approxi ­
mately 150 pounds, another person is needed
to help release push arms from cutting unit.
Sudden release of the push arm could cause
injury.
Repairs
6. Have another person help push down on the right
push arm while you remove the capscrews, flat washers
and nuts securing ball joint mount to caster arm on
cutting unit. Now the person helping can carefully allow
push arm to move upward, which gradually releases the
100 pounds of spring load.
7. Have another person help push down on the left push
arm while you remove the capscrews, flat washers and
nuts securing ball joint mount to carrier frame on cutting
unit. Now the person helping can carefully allow push
arm to move upward which will gradually release the
150 pounds of spring load.
8. Roll the cutting unit away from the traction unit.
j
1. Hose plugs
2. Quick disconnects
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Figure 29
3. Yoke
4. Roll pin
®
Groundsmaster 300 Series