Toro Workman 3000 Series, Service Manual

Page: 71 / 306

Workman 3100
Page 5 – 9
Kohler Gasoline Engine
5. Disconnect fuel line from fuel pump on engine. Plug
end of fuel line to prevent contamination and fuel spill-
age. Position disconnected fuel line away from engine.
6. Disconnect and label electrical leads that attach to
engine and engine accessories.
7. Loosen fasteners that secure hydraulic pump to en-
gine mount (Fig. 5). Rotate pump to allow drive belt (Item
42) to be removed from pump and engine pulley.
8. Disconnect accelerator cable from throttle lever on
engine. Position accelerator cable away from bracket.
9. Disconnect choke cable from choke lever on engine.
Remove choke cable from bracket.
10.Remove all clamps and wire ties that attach wiring
harness, hoses or cables to the engine.
11. Put blocking under transaxle for support.
12.Attach hoist or block and tackle to engine for support.
13.Loosen and remove four (4) lock nuts (Item 37), flat
washers (Item 38) and cap screws (Item 40) that secure
engine to engine mount. Locate and retrieve lock wash-
er (Item 41) from cap screw on right front corner of en-
gine.
14.Remove four (4) cap screws with lock washers that
secure clutch bell housing to engine (Fig. 6).
15.Use a hoist or block and tackle to remove engine
from chassis. One person should operate hoist or block
and tackle and the other person should help guide en-
gine out of chassis. Move engine forward before lifting
to disengage transaxle input shaft from clutch.
16.Note location and retrieve two (2) bushings (Fig. 6,
item 2) from bell housing.
17.If necessary, remove hydraulic pump drive pulley
from stub shaft on flywheel side of engine. Locate and
retrieve woodruff key.
18.If pressure plate and clutch disc removal is neces-
sary, see Clutch Disassembly and Inspection in Chapter
6 – Drive Train.
Flywheel and Pilot Bearing Inspection
1. Inspect flywheel (Item 33) surface for stepped wear,
streaking or seizure and replace if necessary. Check fly-
wheel runout and replace if runout exceeds .005 in.
(0.13 mm).
2. Check pilot bearing (Item 30) for smooth rolling and
noise. Check (sealed) bearing for grease leakage. Re-
place bearing if necessary. Remove pilot bearing by
backing out socket head cap screw that attaches fly-
wheel to crankshaft. Do not reuse bearing if removed.
Figure 5
1. Hydraulic pump
2. Lock nut (2 used)
3. Engine
mount
4. Pump drive belt
5. Carriage
screw
6. Cap screw
2
3
5
6
4
1
Figure 6
1. Engine
2. Bushing (2 used)
3. Clutch bell housing
4. Lock washer (4 used) 5. Cap screw (4 used)
6. Transaxle
7. Clutch
adapter
6
5
4
3
2
1
7
Kohler
Gasoline Engine