5-41. HYDRAULIC CONTROL VALVE REPAIR (CONT).
Remove cartridge (37) and O-ring
(38) from valve body (39) using a 1
in. open end wrench.
Inspect valve spools for cracks, wear, and signs of corrosion
Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective goggles, face mask, and
gloves and use only in a well ventilated area. Avoid contact with skin, eyes, and clothes and
don't breathe vapor. Do not use near open flame or excessive heat. The flashpoint for type I dry
cleaning solvent is 100°F (38°C) and for type II is 140°F (60°C). If you become dizzy while using
cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes is made,
flush eyes with water and get medical aid immediately.
Clean valves and pump body with dry cleaning solvent P-D-680.
Replace any worn or damaged parts.
Assemble valve as follows:
Install relief cartridge (37) and O-ring (38) in valve body (39) using a 1 in. open end wrench.