Section VII. REPAIR OF ENGINE

1 Nut

9 Pedal

2 Lockwasher

10 Lockwasher

3 Ball joint

11 Nut

4 Rod

12 Bellcrank

5 Washer

13 Pin

6 Fitting

14 Screw

7 Spring

15 Nut

8 Pad

16 Bushing

Figure 3-29. Inching pedal

Section VII. REPAIR OF ENGINE

(g) Thermostat

3-18. General

(2) Remove speed limiting governor (para 3-

This section describes direct and general support

9).

maintenance of the Allis-Chalmers engine Model

(3) Remove oil pan (para 3-12).

6MB230 used in the forklift truck. Internal repairs to the

(4) Remove oil pump (para 3-13).

engine, except valve grinding, will require its removal

from the truck.

3-20. Cylinder Head, Block, and Sleeves

a. Cylinder Head.

3-19. Engine Removal and Disassembly

(1) Description. The cylinder head is a one-

a. Removal. Remove the power plant from the

piece, alloy iron, casting which is attached to the top of

truck and separate the transmission, torque converter

the cylinder block by special capscrews.

Cored

and hydraulic pump from the engine (para 2-9 and 2-10}.

passages in cylinder head provide for intake of fuel-air

b. Disassembly.

mixture and expulsion of exhaust gage Cored passages

(1) Refer to TM 10-3930-618-20 and

are provided for circulation of coolant.

To seal

remove the following accessories and components:

compression, a head gasket and fire rings are installed

(a) Fan and water pump.

between cylinder head and block. Located in the cylinder

(b) Alternator and starter motor.

head above each cylinder is an intake valve, an exhaust

valve, replaceable valve seat inserts, two valve guides, a

(d) Fuel pump.

spark plug, and two rocker arms. The valves are

(e) Manifold.

operated by rocker

(f) Distributor

3-34