Hydraulic System Maintenance Instructions (Cont)
20-10. RETRIEVER CONTROL VALVE REPAIR (M984E1) (CONT).
(12) Remove poppet (32), ball (33), and two
preformed packings (34 and 35).
(13) Remove valve (36) and three preformed
packings (37, 38, and 39).
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
Replace all shims.
Clean all metal parts with dry cleaning solvent.
Inspect each part for damage.
Inspect valve body bores for grooves or other damage.
Inspect valve spools for grooves, cracks, or other damage.
Inspect springs for breaks.
Replace damaged or broken parts.
Measure springs (1, 2, and 3). Replace
spring (1) if it is equal to or less than
2.08 in. (52.83 N m). Replace spring (2)
if it is equal to or less than 2.22 in.
(56.39 N m). Replace spring (3) if it is
equal to or less than 2.40 in. (6.00 mm).
Coat all metal parts with a thin film of
(1) Install three preformed packings (1, 2,
and 3) and shuttle valve (4).
(2) Install two preformed packings (5
and 6), ball (7), and poppet (8).