Flow Regulator

TM10-3930-628-12

b. Removal. Refer to figure 4-37 and remove the

figure 4-36. Make sure both cylinders have reached the

end of their stroke.

flow regulator as follows:

Note. Truck must be on a flat level surface to

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

check and adjust mast tilt.

position.

(2) Remove drip pan from beneath truck to

(1) Set protractor to measure 100 to tilt. Place

gain access to components.

protractor against mast as shown. Tilt mast to end of

(3) Disconnect hose assembly from regulator.

backward stroke. Bubble in protractor must be centered

Plug hose and regulator to prevent entrance of foreign

if tilt is correct.

material.

(2) If tilt is not correct, tilt mast to the forward

(4) Remove flow regulator from cylinder.

position and loosen clamp screw (fig. 4-35) on yoke at

Remove elbow from regulator. Plug port in cylinder.

c. Installation. Refer to figure 4-37 and install flow

front end of cylinder. Turn adjusting hex on cylinder rod

(fig. 4-35) to extend or retract rod as necessary to adjust

regulator as follows:

tilt.

(1) Install elbow in flow regulator.

(3) After adjusting, check degree of tilt.

(2) Remove plug from cylinder and install flow

Continue adjusting piston rod until 100 of backward tilt is

regulator in cylinder.

obtained. Tighten clamp screw (fig. 4-35) on yoke.

(3) Remove plug from hose assembly and

(4) Forward tilt is automatically adjusted to

connect hose assembly to regulator.

proper angle when backward tilt is correct.

(4) Install drip pan beneath truck.

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

(5) Remove blocks and lower truck to ground.

ME 3930-628-12/4-36

Figure 4-37. Flow regulator. installed view.

Figure 4-36. Checking degrees of mast tilt.

4-55.

Lift Chains

4-54.

Flow Regulator

a. General. Extension of the two outer cylinders of

the cylinder cluster raise the chain bearing and cross

a. General. The flow regulator is connected to the

head. As the bearing raises the chains, which are

inlet on the cluster cylinder. Flow of fluid back

anchored on the rear to the cylinder cluster, chains raise

to the valve is regulated to allow a controlled

the carriage. Chains raise the carriage to the furthest

lowering of the mast and carriage.

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.

4-35