STEERING CONTROL MANIFOLD (CONT)
Remove four CKCB XCN check valves (17) as required from steering control manifold (2). Install caps/plugs into
Disassemble CKCB XCN check valve (17) as follows:
a. Remove preformed packing (18), backup rings (19 and 20), two preformed packings (21), and backup ring (22)
from CKCB XCN check valve (17). Discard preformed packings and backup rings.
b. Repeat step a as required for disassembly of remaining CKCB XCN check valves (17).
Cleaning compound solvent is used to clean parts and is potentially dangerous to
personnel. Extinguish all smoking materials and do not allow sparks or open
flame near the work area. Use skin and eye protection and work in a well-
Clean all tubes, fittings, attaching hardware, steering control manifold, safety relief valve, and all check valves in
degreaser tank with cleaning compound solvent.
Inspect safety relief valve and all check valves for pitting, cracks, and wear.
If defective, replace parts as
Compressed air used for cleaning/drying can create airborne particles that can
injure the eyes. Always wear eye protection. Pressure must not exceed 30 psi
(207 kPa) or injury to personnel may result.
Inspect all ports and openings in steering control manifold, safety relief valve, and all check valves for foreign
objects, dirt, and clogged passageways. Use compressed air to clear clogged passageways.
Inspect all hydraulic tubes removed for kinks, pin hole leaks, pitted and split flares, and clogged passageways.
Use compressed air to clear clogged passageways. Replace any defective tubes.
Pour clean hydraulic fluid into steering control manifold, safety relieve valve, and all check valves to flush out
Replace all parts found defective and replace all preformed packings and backup rings using respective repair kits.