Toro 3100 manual Control Valve No Spool Detent Replacement

Models: 3100

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Control Valve No. 1 Spool Detent Replacement (Fig. 28, 29)

NOTE: These procedures can be done with the control valve assembly installed on the machine.

1.Remove the entire detent assembly from the control valve. Keep the backup washer, seal retainer and seal with the spool.

2.Apply Locktite 222 or equivalent to threads of detent stud (Item 9) and assemble into spring and stop collars (Items 6 and 8). Thread the assembly into the No. 1 spool. The spring (Item 6) needs to be compressed to get detent stud started. Anchor the slotted end of the spool and apply 10-14 ft-lb (13.6-19 Nm) torque to detent stud (Item 9).

3.Slip bonnet (Item 1) over the entire assembly and secure it to the valve body with the two capscrews. Be sure slot in mounting face of bonnet is at bottom before installation.

4.Install the thrust plate (Item 5) into the bonnet (Item 1) so it bottoms out. Apply approximately 1/4 in. (6 mm) of #2 multi-purpose Lithium-base grease on top of thick washer (Item 5).

5.Install twelve balls (Item 4) into thrust plate (Item 5).

IMPORTANT: If the detent bonnet contains a vent pocket, do not let the balls fall into the vent.

6.Insert race (Item 3) on top of balls with ramp of race facing inward as shown. Rotate race (Item 3) until you are sure all balls are resting properly against the sur- faces of the race and thrust plate (Items 3 and 5).

7.Insert spring (Item 2) into bonnet (Item 1).

8.Apply Locktite 222 or equivalent to the threads of adjustment cap (Item 10) and thread into bonnet. Turn adjustment cap in to compress the spring (Item 2). Actuate the spool assembly, then turn the adjustment cap until the desired detent action is obtained. This will usually be within three turns from bottoming out the adjustment cap..

NOTE: Each turn of adjustment cap (Item 10) changes the “Feel” of the detent action about 20%.

Figure 28

1.

Bonnet

6.

Spring

2.

Spring

7. Capscrew

3.

Race

8.

Stop collars

4.

Ball

9.

Detent stud

5.

Thrust plate

10. Adjustment cap

 

 

 

 

 

 

 

 

Figure 29

Repairs

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Greensmaster® 3100

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Image 76
Toro 3100 manual Control Valve No Spool Detent Replacement