Service Instructions
074985 Rev. B
October 2014
1717
Section 14: M3 Jackscrew Reassembly
M3 Jackscrew Reassembly
Section 14: M3 Jackscrew Reassembly
1. Apply a light coating of lubricant to the threads of jackscrew assembly (3-20).
2. Insert the jackscrew assembly (3-20) through the open end of cylinder (3-10).
Screw the jackscrew into the cylinder end cap until the end of the assembly
protrudes out of the end cap of the cylinder.
3. Turn the jackscrew until the M3 retainer comes into contact with the inside of
the cylinder end cap.
4. Install seal nut (3-30) onto the jackscrew assembly (3-20). Screw the seal nut
until it is up against the cylinder end cap.
5. Screw the slotted nut onto the outboard end of the jackscrew stud until one of
the slots in the nut is aligned with the cross drilled "through hole" in the stud
NOTE:
The nut slots will be facing toward the cylinder end cap.
CAUTION: ALIGN SLOT AND CROSS DRILLED HOLE
When aligning the slot and the cross drilled hole, make certain that the back of the slot
is at least one thread from being aligned with the hole.
6. Insert the spiral pin through the slotted nut and through the jackscrew stud
making sure that equal amounts of the spiral pin is exposed on both sides of the
slotted nut and the jackscrew stud.
7. Turn nut seal until fully tight against end cap.
8. If desirable, wipe away excess lubricant on jackscrew after operation. If
preferred, lubricant may be left on jackscrew to provide additional corrosion
protection.
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