Toro Groundmaster 31900, Service Manual

Page: 82 / 355

Removing the Engine (continued)
5. On model 31900 and 31901 machines; disconnect the throttle cable at the
engine.
IMPORTANT
Mark or tag the various electrical connections during removal if
necessary to assure proper assembly.
To prevent damage to the electrical wire harnesses, cable ties and
clamps may be used to secure wire harnesses to the machine.
Record the location of all cable ties and clamps that are removed
from the machine during engine removal so that they can be properly
replaced during installation.
6. Disconnect all of the electrical connections at the engine.
On the left side of the engine:
• Fuel pump
• Fuel solenoid (model 31900 and 31901 only)
• Oil pressure switch
• Glow plugs
• Coolant temperature sender (model 31900 and 31901 only)
• DPF pressure sensor (model 31902, 31903, 31907 and 31909 only)
• 2 DPF temperature sensors (model 31902, 31903, 31907 and 31909 only)
• 4 engine wire harness connectors (model 31902, 31903, 31907 and 31909
only)
On the right side of the engine:
• Fusible link connector
• Starter solenoid
• Alternator connector
• Alternator stud (model 31900 and 31901)
7. Remove the fasteners securing the wire harness ground and battery negative
(-) cable to the engine block (lower front left corner).
8. Use a 1/2 inch square drive on the hydraulic pump drive belt idler arm to
relieve the belt tension and remove the belt from the pump pulley.
9. Disconnect the cutting unit drive shaft at the PTO clutch.
10. Remove the PTO clutch stop strap.
CAUTION
Make sure that the hoist or lift used to remove the engine can
properly support the engine. The engine assembly weighs
approximately:
• Model 31900 and 31901 = 150 kg (330 lbs)
• Model 31902 and 31903 = 204 kg (450 lbs)
• Model 31907 and 31909 = 172 kg (380 lbs)
Engine: Service and Repairs Page 4–20 Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A