SECTION 9
STEERING
t. Push the inside lower edge of the spool
c. Stroke each surface across the abrasive
so that spool moves towards the splined end
several times and observe the part. Any small
and remove it carefully from the sleeve (see
bright area near an edge indicates a burr which
figures 9-30 and 9-31).
must be removed. Hold the part so that contact
with abrasive is as flat as possible. (Do not
push one edge down hard or the flatness will
u. Push the centering spring set out of the
spring slot in the spool (see figure 9-32).
become rounded). Check each part after 6 to 10
strokes across the abrasive. After polishing
9-44. CLEANING AND INSPECTION.
each part, rinse clean in solvent and blow dry.
Keep these parts absolutely clean until they are
9-45. At, this point all parts have been
assembled.
disassembled and removed from the unit. Each
9-46. REASSEMBLY OF STEERING CONTROL
should be rinsed carefully in clean solvent.
UNIT.
Replace all seals when unit is reassembled.
a. Place housing on a clean wood block with
a. Inspect all moving surfaces to insure that
they have not been scored or abraded by dirt
control end up.
particles or otherwise disrupted. Smooth
b. Drop check valve spring into check hole
burnished surfaces are normal in many areas.
Slightly scored parts can be cleaned with 600
with large end down (see figure 9-37). Drop
grit abrasive paper by hand rubbing only.
check ball into check hole and insure that it
rests on top of the small end of the spring
b. To prepare all surfaces of the meter
within the hole (see figure 9-36). Place the
section for reassembly and insure that all
check valve seat on hex wrench and screw it
edges of the parts are burr free, place a piece
into the check valve hole so that the machined
of 600 grit abrasive paper face up on an
counterbore of the check seat is towards the
extremely flat, clean hard surface. Plate glass
ball (see figure 9-36).
is an appropriate surface. If the 600 grit paper
is new, it should first be rubbed down with a
scrap steel part to remove sharp grit which
would produce scratches. The ends of the star
gear can be used for this purpose if necessary.
Then both sides of the ring gear, both sides of
the plate, the 14 hole end of the housing and
the flat side of the end cap should be cleaned
lightly (see figures 9-33, 9-34, and 9-35).
FIGURE 9-32.
FIGURE 9-36.
FIGURE 9-33.
FIGURE 9-34.
FIGURE 9-37.
FIGURE 9-35.
FIGURE 9-38.
9-9.