Toro 170-DH User manual

1
All Rights Reserved
Printed in the USA
2001 by The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
170-DH and 190-DH
Lawn Tractor
Model No. 74570—Serial No. 220000001 and Up
Model No. 74590—Serial No. 220000001 and Up
Form No. 3327-598
Installation Instructions
Loose Parts
Note: Use the chart below to verify all parts have been shipped.
Description Qty. Use
Steering Wheel
Lock washer
Nut
1
1
1Install the steering wheel.
Seat
Bolt
Flat Washer
Spring Washer
1
2
2
2
Install the seat.
Trailer Hitch
Bolt
Washer
Nut
1
2
2
2
Attach the trailer hitch.
Collector Cover
Grass Collector—Partially Assembled
Grass Bag
Fastener Package
Arrow Decal
1
1
1
1
1
Assemble the grass collector.
Key 2 Used in the ignition and Key Choiceswitch.
Operator’s Manual
Engine Operator’s Manual 1 1Read 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.
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).

2
3
4
5
1
2307
2
Figure 1
1. Center spoke
2. Shaft spline
3. Lock washer
4. Nut
5. Logo cover
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
2
Figure 2
1. Safety switch 2. Bolt and washers
Attaching the Trailer Hitch
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).
1
2
3
Figure 3
1. Trailer hitch
2. Bolt 3. Washer and nut
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).

3
1
2
3
4
4
56
7
89
10
11
12
Figure 4
1. Cover
2. Upper bolts
3. Front tube
4. M5 bolts and nuts
5. Left and right supports
6. Screws
7. Lower brace
8. Corner supports
9. Bottom tube
10. Bag
11. Dumping lever
12. Rear handle
5. Insert the corner supports under the top tube. Fasten
the corner supports to the top and bottom tubes using
the M5 bolts and nuts from under the collector cover
(Fig. 4).
6. Fasten the bottom tube to the front tube with M5 bolts
and nuts (Fig. 4).
7. Tilt the left and right supports rearward. Place the
lower brace on the outside of the bag and secure it to
the left and right supports with the screws (Fig. 4).
8. Place the cover on the grass collector. Align the cover
with the rear fender by adjusting the rear tractor
supports until there is a proper seal between the cover
and the collector. Tighten the rear tractor support bolts.
9. Remove the grass collector from the tractor. Tighten
all screws securely.
10.Use the plastic extrusions on the bag edges to fix the
bag to the frame tube.
11. Insert the dumping lever through the hole of the cover
and secure it with the M5 x 12 screw and M5 nut
(inside the tube) (Fig. 4).
12.Install the grass collector to the tractor (refer to the
Operator’s Manual, Installing the Grass Collector).
When the grass collector is properly positioned, place
the triangle symbol decal directly opposite the triangle
symbol on the rear of the tractor.
Checking the Oil Level
The tractor is shipped from the factory with oil in the
engine crankcase; however, it may be necessary to add oil.
Refer to the Operator’s Manual, Engine Oil Specifications
for oil type, viscosity, and crankcase capacity. Add only
enough oil to raise the level to the “FULL” mark on the
dipstick.
Activating the Battery
1. Remove the battery from the tractor; refer to the
Operator’s Manual, Removing the Battery.
2. Remove the filler caps from the top of the battery.
Danger
Battery electrolyte contains sulfuric acid which is
a deadly poison if consumed, and it causes severe
burns.
•Do not drink electrolyte and avoid contact with
skin, eyes or clothing. Wear safety glasses to
shield your eyes and rubber gloves to protect
your hands.
•Fill the battery where clean water is always
available for flushing the skin.
•Follow all instructions and comply with all
safety messages on the electrolyte container.
3. Slowly pour electrolyte into each cell until the level is
up to the lower part of the tube.
4. Leave the filler caps off and connect a 3 to 4 amp
battery charger to the battery posts. Charge the battery
at a rate of 2 amperes or less for 4 hours (12 volts). Do
not overcharge the battery. Install the filler caps after
the battery is fully charged.
Charging the battery produces gasses that can
explode.
Never smoke near the battery and keep sparks
and flames away from the battery.
Warning

4
5. Install the battery in the chassis; refer to the Operator’s
Manual, Installing the Battery.
Filling the Fuel Tank
Add fuel to the fuel tank; refer to Filling the Fuel Tank in
the Operator’s Manual.
Checking the Tire Pressure
Check front and rear tires for proper inflation; refer to the
Operator’s Manual, Tire Pressure for recommended
inflation pressure.
Lubrication
Make sure all of the necessary points on the tractor are
lubricated; refer to Greasing and Lubrication in the
Operator’s Manual.
Inserting the Keys into the
Ignition and Key Choice
Switches
The Key Choice switch is located on the right side of seat
bracket below the seat.
Checking the Safety System
Refer to the Operator’s Manual, Testing the Safety
System.
Test Driving the Tractor
Make sure all electrical and mechanical systems are
operating properly. See the Operator’s Manual for proper
control function.