HOIST CYLINDERS -706881005

TM 5-4210-233-14&P-1

5-51. HOIST CYLINDERS

This task covers:

a. Removal

b. Installation

TOOLS REQUIRED:

EQUIPMENT CONDITION

Tool Kit, General Mechanics, Automotive

Main Engine Shutdown (see para 2-12.)

(Appendix B, Section 1II, Item 1)

APU Shutdown (see para 2-16.)

Ladder Bedded (see para 2-14.)

MATERIALS/PARTS REQUIRED

Tags, Identification (Item 32, Appendix E)

O-rings (Figure 172, Appendix F)

a. Removal.

WARNING

Escaping fluid under pressure can penetrate the

skin causing serious injury.

Relieve pressure

before unhooking hydraulic or other lines. Tighten

all connections before applying pressure. Keep

hands and body away from pin- holes and nozzles

which eject fluids under high pressure. Use a piece

of cardboard to search for leaks.

If ANY fluid is injected into the skin, it must be

surgically removed within a few hours by a doctor

familiar with this type injury or gangrene may result.

(1) Relieve pressure from hoist cylinder by:

a. Moving battery switch to position 1

or 2.

b. Turn aerial master ON.

Move manual diverter valve to

AERIAL position.

d. Move RUN/LOCK lever to RUN

position.

e. Move RAISE/LOWER handle fore

and aft.

Move battery switch and aerial

master switch to OFF position.

(2) Remove block (1) from hoist cylinder (2) by

removing three screws (3). Remove and

discard O-ring between block (1) and

cylinder (2).

(3) Tag and remove hose(4).

(4) Attach a suitable lifting device to cylinder.

5-335