4-19. DIRECTION CONTROL LEVER MAINTENANCE INSTRUCTIONS - Continued
cover (30) Remove the cover and gasket
(31) Discard the gasket
Inspect control cable (1) for kinks or other dam-
Secure the pulley on the vibrator assembly to
age that would cause binding of the control wire
p r e v e n tit from turning
in the cable.
Remove flat head screw (32). Washer (33)
Inspect turning bolt (23) for scoring or other dam-
may come out with screw
age that would indicate entry of dirt into the bore
of the control housing (38).
Remove the three socket head capscrews
Inspect pin (27) for signs of wear or bent condi-
tion. If worn or bent, replace the pin. A new pin
Remove control housing (38) from vibrator as
measures 6 mm in diameter.
sembly, and remove the shift sleeve (34) and
washer (35) from inside the control housing
Inspect sleeve (34) for signs of wear in the
groove around the outer surface. The pin (27)
m Remove gasket (39) and discard.
rides in this groove near the notch. This groove is
6.1±0.1 mm wide when new Replace sleeve if
Using snap ring plier remove Internal retain-
groove exceeds 6.3 mm in width.
ing ring (40) from groove in bore of control
Inspect control housing (38) for cracks, scored
bores, damaged thread holes, or other damage.
Inspect threaded fasteners for damaged threads
or wrenching surfaces.
Replace any part found defective in any way.
P-D-680, Type III, is moderately toxic to
the skin, eyes and respiratory tract:
avoid prolonged exposure. Skin and
eye protection is required. Good ventila-
Using snap ring plier, install internal retaining
tion is required. Do not use near open
ring (40) in groove inside bore of control hous-
flame or excessive heat. Flash point is
200° F (93.3° C).
Install new gasket (39) on control housing (38).
Clean cable assembly with rag dampened with
dry cleaning solvent and dry thoroughly.
Install the control housing (38) with new gas-
ket (39) onto the vibrator housing. aligning the
Clean all other parts in dry cleaning solvent and
three mounting holes. Secure with three socket
d r y thoroughly.
Torque capscrews to 17 ft-lbs (23 Nm) with
Ensure that all residue from gasket (39) is re-
torque wrench fitted with 6 mm hex key driver.
moved from both the face of control housing (38)
and the mating face on the vibrator assembly.
Install two preformed packings (26) and seal
ring (25) onto turning bolt (23) and seat against
each other with the first preformed packing
against shoulder of turning bolt.
With the pin (27) at center top, insert turning bolt
(23) into the control housing just far enough so