Servicing The Fluid Section - WAGNER LineCoat SP Serie Manuel D'utilisateur

Servicing the Fluid Section

Use of non-Wagner service parts may void
warranty. Ask for original parts made by Wagner
for best services. This pump should receive a
routine servicing after approximately 1,000 hours
of use. Earlier servicing is required if there is
Attention
excessive leakage from the top packing or if pump
strokes become faster on one stroke or the other.
The use of Wagner EasyGlide (P/N 0508619) is
recommended as an upper packing lubricant. Do
not substitute oil, water, or solvent for an upper
packing lubricant.
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Numbers in parentheses refer to the item numbers
in the fluid section illustrations.
Disassembling the Fluid Section
1. Remove the siphon hose assembly. Unthread the foot
valve housing (21) and the pump cylinder (14) with a strap
wrench.
2. Slide the retainer ring (1) up with a small screwdriver, then
push the connecting pin (2) out.
3. Pull the displacement rod (6) through the lower cavity of
the motor/pump block.
4. Remove the Teflon o-ring (3), upper packing spring (5),
and upper packing set (4) from the motor/pump block.
5. Hold the displacement rod (6) in a vise by the flats at the
top of the displacement rod and remove the outlet valve
housing (13) with a wrench while holding the displacement
rod horizontal with wooden support, if necessary. Remove
the seal washer (12), outlet valve seat (11), outlet valve
ball (10), lower packing set (4), lower packing spring (9),
and spring retainer (7).
6. Using a 1/2" extension bar attached to a 1/2" drive ratchet,
insert the end of the extension bar into the square opening
of the foot valve cage (17) inside the foot valve housing
(21). Unscrew and remove the foot valve cage along with
the wave washer (16) from the foot valve housing.
7. Remove the Teflon o-ring (3), foot valve ball (18), foot
valve seat (19), and seat o-ring (20) from the foot valve
housing (21).
8. Remove the o-ring (15) from the pump cylinder (14)
Reassembling the Fluid Section
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Use Teflon tape on all threaded pipe connections.
1. Place a new seat o-ring (20) into the groove in the bottom
of the foot valve housing (21).
2. Inspect the foot valve seat (19) for wear. If one side is
worn, flip the seat to the unused side. If both sides are
worn, install a new seat. Place the new or flipped seat
(worn side down) into the bore at the bottom of the foot
valve housing (21).
3. Place a new foot valve ball (18) onto the foot valve seat
(19). Using a 1/2" extension bar attached to a 1/2" drive
ratchet, insert the end of the extension bar into the square
opening of the foot valve cage (17) and screw the foot
valve cage into the foot valve housing (21). Torque the
cage to 240 in./lbs. (20 ft./lbs.).
4. Place the wave washer (16) on top of the foot valve cage
(17).
5. Insert a new Teflon o-ring (3) into the groove of the
foot valve housing (21). Lubricate the o-ring using oil or
grease.
6. After soaking the leather packings in oil (preferably linseed
oil), reassemble the lower packing set (4). Place the set
onto the outlet valve housing (13) with the peak of the "V"
packings pointing down toward the hex on the outlet valve
housing.
© Wagner. All rights reserved.
7. Inspect the outlet valve seat (11) for wear. If one side is
worn, flip the seat to the unused side. If both sides are
worn, use a new seat. Insert the outlet valve ball (10),
new or flipped seat (worn side away from ball), and a new
seal washer (12) into the displacement rod (6).
8. Clean the threads on the outlet valve housing (13) and
coat the threads with blue Loctite #242. Make sure the
Loctite is only on the threads.
9. Place the lower packing spring (8) onto the outlet valve
housing (13) followed by the spring retainer (7).
10. Screw the displacement rod (6) and the outlet valve
housing (13) together. Tighten in a vise to 900 in./lbs. (75
ft./lbs.).
11. Insert the Teflon o-ring (3) into the upper grove of the
motor/pump block.
12. Insert the upper packing set (4) into the motor/pump block
with the peak of the "V" packings pointing up toward the
motor.
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The packings must be soaked in oil before
installation.
13. Place the upper packing spring (5) into the motor/pump
block with the small tapered end facing up toward the
motor/pump block.
14. Insert the displacement rod (6) up through the upper
packings in the motor/pump block.
15. Align the holes in the displacement rod (6) and the
hydraulic piston rod and insert the connecting pin (2).
Replace the retaining ring (1) over the connecting pin.
16. Thread the short threads of the pump cylinder (14) into the
motor/pump block and tighten with a strap wrench.
17. Place the o-ring (15) onto the top grove of the pump
cylinder (14).
18. Thread the foot valve housing (21) onto the pump cylinder
(14), tighten with a strap wrench and then back off to align
the siphon hose.
It is not necessary to over-tighten the foot valve
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housing. O-ring seals perform sealing function
without excessive tightening. Full thread
engagement is sufficient. The foot valve housing
may be rotated backward up to 1/2 turn from full
engagement for convenient hose position.
For siphon hose attachment, it is critically
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important that the threads of the siphon hose fit
snugly into the foot valve housing with the hose
assembly couplings Teflon taped and sealed to
prevent air leakage.
25
R
GB