Service Manual

Workman GTX GasolinePage 3 - 6Gasoline Engine

Service a nd Repairs

Cooling System

To ensure proper engine cooling, make sure the grass

screen, cooling fins and other external surfaces of the

engine are kept clean at all times.

NOTE: Perform this maintenance procedure at the in-

terval specified in the Operator’s Manual.

IMPORTANT: The engine that powers the Workman

GTX is air- c ooled. Operating the engine with dirty

or plugged cooling fins or a plugged or dirty blower

housing will result in engine overheating and dam-

age.

1. Park machine on a level surface, stop engine, en-

gage parking brake and remove key from the key switch.

2. Raisebedandsupportwithproprod.

3. Remove rear frame panel cover to allow easier ac-

cess to engine (see Rear Frame Panel Cover in the

General Information section of this chapter).

4. Carefully remove spark plug wire from the spark plug

to prevent the engine from starting unexpectedly.

IMPORTANT: Never clean engine with pressurized

water. Water could enter and contaminate the fuel

system.

5. Clean cooling fins on cylinder head.

6. Clean static debris screen and blower housing of dirt

and debris. Remove screen and housing if necessary

(Fig. 4).

7. If necessary, remove engine cylinder and head

shields to allow thorough cleaning of cylinder fins (Fig.

5).

IMPORTANT: Never operate engine without the

blower housing or cylinder shields installed. Over-

heating and engine damage will result.

8. Make sure static screen, blower housing, cylinder

shield and head shield are reinstalled to the engine if re-

moved.

9. Attach spark plug wire to spark plug.

10.Secure rear frame panel cover to vehicle. Lower and

secure bed.

Figure 4

1. Static debris screen 2. Blower housing

Figure 5

1. Cylinder head shield 2. Cylinder shield