Damaged Cylinder Body Repair Using Weld.

TM 5-3835-222-BD

8-12. Hydraulic Cylinder Repair. For BDAR purposes, a damaged or inoperable hydraulic cylinder

may be quickly repaired and made operable or partically operable, thus restoring the effectiveness

of the equipment as a whole. Although some damage is irreversible, there are many cases where a

fix-forward technique is feasible. This section provides useful information and procedures for several

cylinder repairs.

8-12.1 Damaged Cylinder Body Repair Using Weld.

Limitations:

Piston seals will not seal properly over repaired area

Hydraulic cylinder must be removed.

CAUTION

Caution must be used to prevent hydraulic fluid fire

which could cause further damage to the equipment.

Personnel/Time Required:

2 soldiers 2.0 hrs.

Materials/Tools:

Tool Kit

Welding Equipment

Hoist

Deleted.

Procedural Steps:

a. Relieve pressure of hydraulic System.

b. Remove cylinder.

c. Remove ail hydraulic fluid from cylinder.

d. Slide cylinder rod so that the piston is as far from damaged section as possible.

e. File any rough edges that are at the damaged point.

f. Weld steel plate over damaged area.

g. Install repaired cylinder.

h. Check that the hydraulic reservoir level is at least at the minimum operating level. if this

level is low, refer to Para 8-13 and fill the reservoir as needed.

I. Operate all hydraulic subsystems (except those that may still be damaged) to remove air from

the system. Check carefully for fluid leaks. Tighten leaking fittings.

8-28 Change 1