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STEERING
19-15
remove the valve body and the three
"0"
rings (Fig.
4).
(3) Remove the pivot lever and spring. Pry under
the spherical head with a screw driver (Fig. 5).
CAUTION: Use care not t o collapse slotted end of
the valve lever as this w i l l destory the bearing toler-
ances o f t h e spherical head.
(4) Remove the gear shaft grease retainer and oil
seal as outlined in "Gear Shaft Oil Seal Replacement."
(5) Loosen the gear shaft adjusting screw locknut
to facilitate removal and remove the gear shaft cover
nut with Tool C-3633 (Fig. 6).
(6) Rotate the wormshaft to position the gear shaft
sector teeth at the center of the piston travel then
loosen the steering power train retaining nut with
Tool C-3634 (Fig. 7).
CAUTION:
Oil
w i l l d r a i n out when t h e gear shaft
and cover are withdrawn f r o m t h e gear housing.
(7)
Position the hdlding Tool C-3323 so the sector
shaft is in a horizontal position, place Tool C-3875 on
the threaded end of the gear shaft and while sliding
the tool into the housing until both the tool and the
shaft are engaged with the bearings (Fig. 8).
(8) Turn the wormshaft to the full left turn posi-
tion to compress the power train parts, then remove
the power train retaining nut and washer.
(9) While holding the power train firmly com-
pressed, pry on the piston teeth with a screw driver
using the gear shaft as a fulcrum and remove the
complete power train (Fig.
8).
NOTE: It is important that the cylinder head, cen-
ter race and spacer assembly and the housing head
be maintained in close contact w i t h each other. This
w i l l prohibit the teflon sealing ring o n the worm-
shaft f r o m becoming disengaged f r o m its retainer
in the cylinder head. It w i l l also eliminate the pos-
sibility of t h e reaction rings becoming disengaged
f r o m t h e i r grooves in
both
the cylinder head and
housing head.
CROSS SHAFT
Fig. 8-Removing
the Power Train
(10) Place the power train in a vise equipped with
soft jaws to avoid damaging the piston assembly. Re-
fer
to
Fig. 10 for parts identification.
CAUTION:
Do
not turn the wormshaft more than
one-half turn
during disassembly.
( 1 1 )
Remove the housing head nut tang washer.
NOTE: The
33
worm 'bearing needle rollers will
fall out when the housing head is removed f r o m t h e
wormshaft. Use arbor Tool
C-3929
(Fig.
91,
t o hold
rollers in position when the housing head i s re-
moved.
(12) Raise the housing head until the wormshaft
oil seal just clears the top of the wormshaft and posi-
tion the arbor Tool (2-3929 on top of the wormshaft
and into the oil seal. With the arbor in position pull
up on the housing head until the arbor is positioned
in the bearing. Remove housing head and arbor.
rRAlN
624
Fig. 7-Removing
the Power Train
Retaining
Nut
Fig. 9-Retaining
the Bearing Rollers with
Arbor Tool
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