TM 5-3810-295-34
(7) Install wear plate (33) and secure with
(21) Reconnect all hydraulic lines, as tagged, to
screws (32).
the pump assembly.
(8) Install new preformed packing (29) and back
b. Refer to figure 17-13 and reassemble and
up ring (31) on pressure plate hub (36).
install the emergency steering pump as follows:
(9) Lay preformed packing (26) in place and
(1) Press shaft (26) through seal (28) and
install hack-up ring (30) and preformed packing (28) on
bearing (27) using an arbor press while supporting
(assembly).
bearing (27) inner race.
(10) Install cartridge assembly in body (27) so
(2) Assemble bearing (25) to shaft (26) and
one of the chamfers on ring (.34) will align with inlet port
install bearing and shaft assembly into valve body (23).
on inlet housing (25).
Secure in body with snap ring (24).
(11) Place inlet housing (25) over the cartridge
(3) Place rotor (20) on pressure plate (16) and
assembly so locating pins (39) are properly engaged.
insert vanes (21) in rotor slots.
NOTE
NOTE
Inlet must be in correct position with respect to
The radius edges of vanes (21) must be
body outlet as marked in disassembly.
toward ring (17).
(12) Install bolts (24) and tighten evenly to 90-95
(4) Install location pins (22) in pressure plate
ft-lb (122.0--128.8 N m) torque.
(16). Place preformed packing (18) on plate (16 ) and
(13) Assemble pressure plate (20), rotor (19),
install ring (17) over pins (22) with the ring arrow pointing
vane (21), intra vanes (22), ring (18), locating pins (23),
in the correct direction of rotation.
wear plate (17) and screw (16) as described in (4), (5)
(5) Install preformed packing (19) in groove of
and (6) above.
valve body (23).
(14) Install cover cartridge assembly in housing
(6) Place spring (15) in cover (4) and assemble
(25). locating pins (23) must engage housing.
cover (4) and cartridge and ring assembly to valve. body
(15) Place back-up ring (14) and preformed
(23) with bolts (3). Tighten bolts (3) to 75-85 ft-lb
packing (12) on pressure plate (20).
(101.7-115.2 N- m) torque.
(16) Install preformed packing (13) and back-up
(7) Install seat (14), poppet (13), spring (12)
ring (15) on pressure plate hub.
shims (11) and (10), and pipe plug (9) to valve cover (4).
(17) Install preformed packing (11) on cover (5)
NOTE
and assembly to housing (25). Secure with cap screws
Use original shims (10) and ( 1) for
(4). Tighten cap screws (4) to 4.s50 ft-lb (61.0-7.8 N m)
reassembly.
torque.
(8) Install piston (8), spring (7) and pipe plug (6)
(18) install check valve (10), spring (9) and pipe
to valve cover (4). Install pipe plug (5).
plug (8) in cover (5).
(9) Install emergency steer pump on
(19) Install retainer (7) and pipe plug (6) in cover
transmission and secure with lock washers (2) and cap
(5).
clews (1).
(20) Install new gasket (3) and secure pump
(10) Reconnect all lines, as tagged, to the
assembly to torque converter with lock washers (2) and
emergency steer pump.
cap screws (1).
Section V.
REPAIR OF STEERING SELECTOR CONTROL VALVE
b. Refer to figure 17-15 and disassemble
17-18. Description
selector control valve as follows:
The steering selector control valve is mounted on the
(1) Remove pin (3) and lift handle (4) off valve.
carrier cab floor to the right of the operator. This valve
(2) Remove screws (5) and spool seal (6) from
allows the operator to select front steer, four wheel
valve body (12).
steer, or crab position steering.
(3) Unscrew relief valve (7) from valve body (12).
17-19. Removal and Disassembly
Remove plug (8).
a. Refer to figure 17-15 and remove the
(4) Remove check valve (9) and valve cap (10).
selector control valve as described in the following:
Push spool assembly (11) from valve body (12).
(1) Tag and disconnect all hydraulic lines to the
(5) Remove screws (13) and nameplate (14) if
valve.
required.
(2) Remove cap screw (1) and lock washer (2).
Lift selector control valve from the cab.
17-21
