Propeller balancing Applications

TM 55-4920-201-14

adequate hoisting of balance load within range of

Key to figure 4-2:

ram piston travel.

1. Piston stop washer and

CAUTION

retaining ring

Do not exceed load limits engraved on

2. Pump lifting plate

load indicating gage (8, figure 4-2) of

3. Pump handle

hydraulic pump for either 1 / 16-inch

4. Pump positioning screw

or 3 / 16-inch suspension cable.

5. Pump valve

General use of the 3 / 16-inch cable is

6. Ram piston

recommended so as to avoid inadvertent

7. 3 / 16.Inch cable assembly

overloading of the 1 / 16.inch cable.

8. Load indicating gage

4-11. PROPELLER

BALANCING

AP-

4-10. Suspension Cables. Install 3 / 16.inch

PLICATIONS.

suspension cable (13, figure 1-13) in ram piston (6,

figure 4-2) of hydraulic pump assembly as follows:

NOTE

a. Insert ball end of cable upward through

All kit components provide for close-

center hole in the ram piston guide. Position pump

tolerance slip fits. Clean all mating surfaces

lifting plate (2, figure 4-2) sidewire to permit free

thoroughly before each kit component

upward passage of cable and balls.

installation. Avoid nicks, burrs, sharp

b. Move pump lifting plate toward center to

edges, dirt and other superficial defects.

engage one of the cable balls so that the suspension

Equipment being balanced shall also be

cable and quick-disconnect coupling assembly may

clean and free from defects. The im-

be suspended from lifting plate. Make cable

portance of having all equipment clean and

engagement with ram piston in full down position.

devoid of surface defects cannot be

Engagement of lowest possible cable ball will insure

overemphasized.

4-4