5-26. POWER STEERING PUMP - Continued
(2) Pump Cartridge Repair.
Pump must be removed from truck (see para a.).
(a) Draw or scribe match marks across cover (5), ring (11) and body (17).
(b) Remove cover screws (1). Note position of cover ports with respect to body port and lift off cover (5)
and O-ring (10). Discard O-ring.
(c) Remove pressure plate (8) and spring (7).
(d) Note position of ring (11) with respect to body (17). Also note the direction of the arrow on the ring. Lift
ring (11) free of pump body (17). Remove O-ring (11A). Discard O-ring.
(e) Remove vanes (16) from rotor (15) and slide rotor off pump shaft (13).
(f) Remove pressure relief valve from valve cover (see para c.).
Dry cleaning solvent P-D-680 (safety or Stoddard's solvent) is
potentially dangerous. Avoid repeated and prolonged breathing
of vapors and skin contact with the liquid. Do not use near open
flame, arcing equipment or other ignition sources. Always wear
eye protection and protective clothing. The flash point of P-D-
680 is 100 to 138 deg. F (38 to 59 deg. C).
Death or serious injury could occur if compressed air is directed
against the skin. Do not use compressed air for cleaning or
drying unless the pressure is/has been reduced to 30 psi (2.11
kg/cm2) or less. When working with compressed air, always use
chip guards, eye protection, and other personal protective
(g) Using dry cleaning solvent (Item 3, Appendix E), wash all parts thoroughly and blow dry using
(h) Inspect rotor (15) and vanes (16). Replace both along with ring (11) (repair kit) if excessive play is
noticed between vane and slots in rotor.