VERDER HI-CLEAN VA-2H80, Repair Parts

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Repair
Center Center Center Section Section Section Repair Repair Repair
Tools Tools
Tools Required:
Required:
Required:
• Torque wrench
• 10 mm socket wrench
• 9/16 in. socket wrench
• Bearing puller
• O-ring pick
• Press, or block and mallet
Disassemble Disassemble
Disassemble the
the
the Center
Center
Center Section
Section
Section
1. Follow either the Disassemble the Standard
Diaphragms, page 13 or Disassemble the
Overmolded Diaphragms, page 15 , as
appropriate.
2. Remove pilot valves (111).
3. Use a 3/8 hex wrench to remove two bolts (113),
then remove one air cover (110) and alignment
pins (108). Repeat for the other air cover.
4. Inspect the diaphragm shaft (24) for wear or
scratches. If it is damaged, inspect the bearings
(107) in place. If they are damaged, use a
bearing puller to remove them.
NOTE:
NOTE: NOTE: Do not remove undamaged bearings.
Reassemble Reassemble Reassemble the the the Center Center Center Section Section Section
NOTE: NOTE: NOTE: Use lithium-based grease whenever
instructed to grease. Order Verder PN 819.0184.
1. Clean all parts and inspect for damage. Replace
parts as needed.
2. Grease and install the diaphragm shaft u-cups
(106) so the lips face
out out
out
of the housing and
toward the bearing they are behind.
3. If replacing the shaft bearings, insert the new
bearings (107) into the center housing. Use a
press or a block and rubber mallet to press-fit
the bearing so it is flush with the surface of the
center housing.
4. Install the air covers:
a. Put one air cover on the bench. Install the
alignment pins (108) and a new gasket (109).
b. Carefully place the center section on the air
cover.
c. Install the second set of alignment pins (108)
and gasket (109) in the center section. Lower
the second air cover onto the center housing.
d. Apply medium-strength (blue) thread locker
on the bolts (113). Install two bolts and
torque to 41-54 N•m (30-40 ft-lb). Turn the
pump over on the bench and install and
torque the other two bolts.
5. Grease and install pilot valves (111). Torque to
2.3-2.8 N•m (20-25 in-lb). Do not over-torque.
1
Apply lithium-based
grease.
2
Lips must face out of
housing.
3
Torque to 41–54 N•m
(30–40 ft-lb).
4
Torque to 2.3-2.8 N•m
(20-25 in-lb).
18 812.0066