Figure 4-41. Flow regulator, installed view.

TM 10-3930-631-12

(1) Jack or lift front end of truck. Block in

Continue adjusting piston rod until 100 of backward tilt is

position.

obtained. Tighten clamp screw (fig. 4-39) on yoke.

(2) Remove drip pan from beneath truck to

(d) Forward tilt is automatically adjusted to

gain access to components.

proper angle when backward tilt is correct.

(3)

Disconnect hose assembly from

(e) Install floor and toe plates and drip pan.

regulator. Plug hose and regulator to prevent entrance

(2) Normal tilt of the mast on model

of foreign material.

ACE40AEE180 trucks is forward and 30 minutes

(4) Remove flow regulator body and flow

backward. Check and set tilt as described in (1) above

regulator from cylinder. Remove elbow from regulator

to these limits.

body. Plug port in cylinder.

c. Installation. Refer to figure 4-41 and install flow

4-55. Flow Regulator

regulator as follows:

a. General. The flow regulator is connected to the

(1) Remove plug from cylinder and install

inlet on the cluster cylinder. Flow of fluid back to the

flow regulator body in cylinder.

valve is regulated to allow a controlled lowering of the

(2) Install flow regulator and elbow in flow

mast and carriage.

regulator body.

b. Removal Refer to figure 4-41 and remove the

(3) Remove plug from hose assembly and

flow regulator as follows:

connect hose assembly to regulator body.

(4) Install drip pan beneath truck.

(5) Remove blocks and lower truck to

ground.

46-6. Lift Chains

a. General. Extension of the two outer cylinders

of the cylinder cluster raise the chain bearing and cross

head. As the bearing raises the chains, which are

anchored on the rear to the cylinder cluster, chains raise

the carriage. Chains raise the carriage to the furthest

extent of the cylinders.

b. Removal.

(1) Lower the mast and carriage to the

lowest limit.

(2) Attach a chain hoist to the carriage and

raise slightly to relieve tension on the chains.

(3) Refer to figure 4-42 and remove cotter

pins and chain links securing chains to carriage.

Figure 4-41. Flow regulator, installed view.

4-48