8-8
2.SPECIAL TOOLS
①Torque wrench(Torque 5㎏f·m) -----------------1
②5/12″-12 socket ---------------------------------1
③“- ”Driver(big) ------------------------------------ 1
④“- ”Driver(small) ----------------------------------1
⑤Centering spring installer ------------------------ 1
(P/N : 600057)
⑥plastic hammer ------------------------------------ 1
⑦grease
⑧jaw vice -------------------------------------------- 1
⑨marking pen --------------------------------------- 1
3.Disassembly
STEP 1.
secure the steering hand pump body in a clean soft jaw
vice.,do not over tighten the vice.Remove the
fittings,remove and discard the o-rings.Make a note of
the position of the sensing hose fitting.
STEP 2.
Put alignment marks (A) on body, plate,
stator and end cap.Remove bolts and end
cap,remove and discard o-ring.
STEP 3.
Remove spacer,stator and rotor,remove and
discard o-ring.Remove drive shaft and
plate.Remove and discard o-ring.Remove
the pump from the vice and place on a clean
work surface.
STEP 4.
For pumps equipped with cross over check
valves,mark position and remove
spring,valve pins and balls.
IMPORTANT:Do not use a magnet to
remove balls.
STEP 5.
Use a screw driver to release the spiral
retaining ring from the groove in the pump
body.Remove the spiral retaining ring,seal
bushing,o-ring and seal ring.Remove dust
seal from seal bushing.
STEP 6.
Remove thrust washer,thrust bearing and
thrust washer.
STEP 7.
Turn spool and sleeve assembly until pin is
parallel to the hydraulic fitting mounting
face.Remove spool and sleeve assembly
from the body.
STEP 8.
Remove pin from the spool and sleeve
assembly.Remove spool from sleeve and
remove centering springs.
O-ring
End cap
Cover bolt
Cover bolt
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