Toro 170-DH, 190-DH Installation Instructions Manual
170-DH and 190-DH
Lawn Tractor
Model No. 74570—Serial No. 220000001 and Up
Model No. 74590—Serial No. 220000001 and Up
Installation Instructions
Loose Parts
Note: Use the chart below to verify all parts have been shipped.
Description Qty. Use
Form No. 3327-598
Steering Wheel
Lock washer
Nut
Seat
Bolt
Flat Washer
Spring Washer
Trailer Hitch
Bolt
Washer
Nut
Collector Cover
Grass Collector—Partially Assembled
Grass Bag
Fastener Package
Arrow Decal
Key 2 Used in the ignition and Key Choice switch.
Operator’s Manual
Engine Operator’s Manual
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1
1
1
2
2
2
1
2
2
2
1
1
1
1
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1
Install the steering wheel.
Install the seat.
Attach the trailer hitch.
Assemble the grass collector.
Read before operating tractor.
Installing the Steering Wheel
1. Position the front wheels straight ahead.
2. Remove the logo cover by releasing the 3 latches from
the back side with a screwdriver.
2001 by The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
3. Line up the center spoke toward the seat and position
the steering wheel onto the shaft spline (Fig. 1).
4. Secure the steering wheel with a lockwasher and nut
(Fig. 1).
5. Torque the steering wheel nut to 50 ft-lb. (37 N.m).
6. Snap the logo cover into place (Fig. 1).
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1
Printed in the USA
5
Attaching the Trailer Hitch
4
1. Center spoke
2. Shaft spline
3. Lock washer
2
Figure 1
4. Nut
5. Logo cover
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3
2307
Installing the Seat
1. Remove the plastic cover from the seat and discard it.
2. Loosen the two bolts on the tractor seat hinges.
3. Set the seat in place and secure it with the two bolts,
spring washers, and flat washers (Fig. 2).
4. Connect the safety switch to the seat (Fig. 2).
1. Line up the holes in the trailer hitch with the holes in
the tractor frame.
2. Attach the hitch with two bolts, washers, and nuts
(Fig. 3).
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3
Figure 3
1. Trailer hitch
2. Bolt
3. Washer and nut
2
2
Figure 2
1. Safety switch 2. Bolt and washers
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Assembling the Grass
Collector
1. Tilt the front tube of the partially assembled collector.
Align the upper holes with the holes on the upper tube.
Loosely fasten the tubes together with the upper bolts
(Fig. 4).
2. Place the collector on the rear tractor supports (refer to
the Operator ’s Manual, Installing the Grass Collector)
and align the collector frame with the tractor fenders.
Tighten the upper bolts (Fig. 4).
3. Stretch the bag and put it over the rear handle (Fig. 4).
4. Insert the bottom tube into the bag (Fig. 4).
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