English
English
16
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30. Place the cylinder upright in a vise by clamping on the wrench
flats.
31. Locate the new upper and lower packing assemblies and pack the
areas between the packing lips with grease. Lubricate the o-rings
on the exterior of the packings with grease.
Install upper packing
with large beveled
edge facing down.
Large Beveled Edge
32. Insert the upper packing assembly
into the top of the cylinder with the
large beveled edge facing down.
33. Thread the upper seal retainer into
the cylinder but do not tighten.
34. Rotate the cylinder in the vise so
that the bottom end is facing up.
35. Pre-form the lower packing using
the lower packing sizing tool (included in the repacking kit).
Install lower packing so
large beveled edge will
be facing up when the
cylinder is upright.
Large Beveled Edge
36. Insert the lower packing assembly
partially into the bottom of the
cylinder with the large beveled
edge facing toward the cylinder
(beveled edge will be facing up
when the cylinder is upright).
37. Push the lower packing assembly
into position using the lower
packing insertion tool (see Fluid
Section Assembly parts list for lower packing insertion tool
P/N).
38. Place the piston insertion tool (included in the repacking kit)
over the top of the piston rod.
39. Insert the piston rod into the bottom of the cylinder, through
the lower packing assembly, through the upper packing
assembly, and out through the upper seal retainer.
40. Tighten the upper seal retainer. Torque to 300–360 in.-lbs.
NOTE: When repacking the fluid section, make sure the
raised lip on the bottom of the lower packing
assembly is fully outside the packing around the
piston rod after insertion of the piston rod.
41. Apply blue Loctite to the bottom 3–4 threads on the cylinder.
Turn the jam nut clockwise until it is flush against the top of
the cylinder.
42. Lubricate the first several threads at the top of the cylinder
with anti-seize compound. Remove the cylinder from vise.
43. Place the splash guard over the top of the piston rod and push
down until it is flush against the upper seal retainer.
44. Thread the cylinder into the pump housing, turning
clockwise. When the connecting pin hole on the piston
rod lines up with the hole in the slider assembly, insert the
connecting pin.
45. Slide the retaining ring down on the slider assembly to cover
the connecting pin.
46. Continue to turn the cylinder clockwise until the jam nut is
flush against the pump housing.
NOTE: If the nipple on the cylinder does not face the back
of the unit, turn the cylinder counterclockwise until
the nipple faces the back of the unit. Do not turn the
cylinder more than one full turn.
47. Once the nipple is positioned, turn the jam nut clockwise until
it contacts the pump housing.
48. Tighten the jam nut with a wrench to tighten it against the
pump housing.
49. Attach the high-pressure hose to the fitting on the back of the
cylinder and tighten with a wrench. Do not kink the hose.
50. Insert the lower support ring into the bottom of the cylinder.
51. Making sure that the Viton o-ring and PTFE back-up ring are
lubricated and in place, reassemble the inlet valve assembly
and and thread it into the cylinder. Tighten the inlet valve
housing until the o-ring engages, then continue to tighten
until snug. Once snug, torque to 300 in.-lbs. (25 ft.-lbs.).
52. Thread the siphon tube into the inlet valve housing and
tighten securely. Make sure to wrap the threads on the siphon
tube with PTFE tape before assembly. Replace the return hose
into the clamp on the siphon tube.
53. Place the front cover on the pump housing and secure in
position using the four front cover screws.
54. Turn on the sprayer by following the procedure in the
“Operation” section of this manual and check for leaks.
NOTE: Repacking kit P/N 0509510 is available. For best
results use all parts supplied in this kit.
