Installation Instructions

ManualsBrandsToro ManualsAttachmentsFront Differential Interrupter Kit, Four-Wheel Drive Workman HDX/HDX-D Utility Vehicle

FormNo.3378-781RevB

FrontDifferentialInterrupterKit

Four-WheelDriveWorkman

HDX/HDX-DUtilityVehicle

ModelNo.121-6337

InstallationInstructions

WARNING

CALIFORNIA

Proposition65Warning

Thisproductcontainsachemicalorchemicals

knowntotheStateofCaliforniatocausecancer,

birthdefects,orreproductiveharm.

PreparingtoInstalltheKit

1.Movethemachinetoalevelsurface.

2.Shutofftheengine,settheparkingbrake,andremove

thekey.

RemovingtheHood

1.Whilegraspingthehoodintheheadlightopenings,lift

uponthehoodtoreleasethelowermountingtabs

fromtheslotsinthebumper(Figure1).

Figure1

1.Hood

2.Pivotthebottomofthehoodupwarduntilthetop

mountingtabscanbepulledfromtheframeslots

(Figure1).

3.Pivotthetopofhoodforwardandunplugthewire

connectorsfromtheheadlights(Figure1).

4.Removethehood.

InstallingtheClutchSwitch

DrillingtheClutchBracket

1.Alignthedrillingtemplatetothetopedge,face,bottom

edge,andrightsideofthesupportbracketforthe

clutchpedal(Figure2).

Figure2

1.Supportbracket(topedge)3.Supportbracket(bottom

edge)

2.Drillingtemplate

4.Supportbracket(right

side)

2.Usingthetemplateasadrillingguide,drill2holes

(5/16inch)throughthefaceofthesupportbracket

(

Figure2).

Note:Pressintheclutchpedalasnecessarywhen

drillingthesupportbracket.

3.Removethedrillingtemplateanddiscardit.

8111LyndaleAvenueSouth

Bloomington,MN55420

Registeratwww.T oro.com.

OriginalInstructions(EN)

PrintedintheUSA

AllRightsReserved

*3378-781*B

Summary of content (8 pages)

PAGE 1
Form No. 3378-781 Rev B Front Differential Interrupter Kit Four-Wheel Drive Workman® HDX/HDX-D Utility Vehicle Model No. 121-6337 Installation Instructions WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. Preparing to Install the Kit 1. Move the machine to a level surface. 2. Shut off the engine, set the parking brake, and remove the key. 2.
PAGE 2
Installing the Clutch Switch 5. Align the holes in the switch bracket with the holes that you drilled in the support bracket (Figure 4). 1. Align the switch bracket to the 2-pin switch with the contact pins of the switch up, and the short flange of the bracket over the body of the switch (Figure 3). 6. Secure the switch bracket to the support bracket for the clutch pedal with the 2 bolts and 2 locknuts (Figure 4). Replacing the Brake Switch Removing the 2-Pin Brake Switch 1.
PAGE 3
Installing the Interrupter Wiring Harness Installing the 4-Pin Brake Switch 1. Align the new 4-pin brake switch to the support bracket for the brake pedal with the pins of the switch facing up toward the steering wheel (Figure 6). Routing the Wiring Harness 1. Align the interrupter wiring harness to the chassis of the machine as shown in Figure 7. Figure 6 1. Threaded plate 3. Support bracket (brake pedal) 2. 4-pin brake switch 4. Screw Figure 7 2.
PAGE 4
3. Route the branch of the harness with the 2-socket connector for the clutch switch along the support bracket for the clutch pedal (Figure 9). Note: The body of the clutch switch connector is rectangular shaped. Figure 8 1. 2-socket connector (delay timer) 5. Chassis tube Figure 9 9. Support bracket (brake pedal) 2. 2-pin connector 6. Steering-column 10. Steering (delay timer) bracket column (outboard) 3. Relay 7. 4-socket connector (brake switch) 11. 2-socket connector (clutch switch) 4.
PAGE 5
Connecting the Harness 2. Connect the 2-socket connector to the clutch switch (Figure 12). 1. Disconnect the battery as follows: A. Squeeze the battery cover to release the tabs from battery base (Figure 10). Figure 10 1. Battery cover B. Remove the battery cover from the battery base (Figure 10). C. Remove the terminal of the positive battery cable from the battery post (Figure 11). Figure 12 Note: Ensure that the terminal positive battery cable does not touch the battery post. 1.
PAGE 6
5. Secure the harness as follows: A. Secure the harness of the delay timer with a cable tie to the chassis tube in the area between the relays (Figure 15). Figure 13 1. 2-pin connector (machine harness) 3. Delay timer 2. Connector (delay timer) Figure 15 1. Relay C. Connect the 2-pin connector of the interrupter wiring harness to the shunt connector (Figure 14). 4. Chassis tube 2. Delay timer harness 5. Interrupter wiring harness 3. Cable tie 6. Steering-column bracket (outboard) B.
PAGE 7
Testing the Differential Interrupt Kit Preparing the Machine 1. Rotate the steering wheel of the machine full left. 2. Use a jack to raise the front-right corner of the machine. G022052 Figure 16 Figure 17 1. Front jacking point 1. 2-pin connector (differential harness) 2. 2-socket connector (machine harness) 3. Support the machine using jack stands. B. Testing the Wiring Harness and Switches Insert the key into the key switch and rotate the key switch to the On position.
PAGE 8
Installing the Hood 1. Align the bottom of the hood to the top of the bumper (Figure 1). 2. Connect the lights. 3. Insert the top mounting tabs into the frame slots (Figure 1). 4. Insert the lower mounting tabs into the pockets in the bumper (Figure 1). 5. Ensure that the hood is fully engaged in the top, sides and bottom grooves (Figure 1). Figure 18 1. Clutch pedal 4. Clutch released (11.5 to 14 volts) 2. Brake pedal 5. Brake pressed (0 volts) 3. Clutch pressed (0 volts) 6. Brake released (11.