M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-28.4. RIGHT HAND FRONT CONTROL VALVE BODY REMOVAL/REPAIR/INSTALLATION
Remove fitting (74) and preformed
Remove cap (76), tee fitting (77),
fitting (78), and preformed packing (79)
from valve body (37).
Remove cap (80), and preformed
Remove setscrew (82), spring (83), and relief
valve (84) from valve body (37).
Adhesives, solvents, and sealing compounds can burn easily, can give off harmful
vapors, and are harmful to skin and clothing. To avoid injury or death, keep away
from open fire and use in well-ventilated area. If adhesive, solvent, or sealing
compound gets on skin or clothing, wash immediately with soap and water.
Clean all metal parts in dry cleaning solvent.
Inspect each part for damage.
Replace damaged parts.
Replace centering spring if free length is under 0.940 in. (23.0 mm).
Replace valve springs if under 0.800 in. (20.0 mm).