Diaphragm Repair - VERDER VERDERAIR VA 40 Instructions And Parts List

Service

Diaphragm Repair

Tools Required
•
Torque wrench
•
13 mm socket wrench
•
Adjustable wrench
•
19 mm open-end wrench
•
O-ring pick
•
Lithium-base grease
Disassembly
NOTE: A Fluid Section Repair Kit is available. Refer to
page 25 to order the correct kit for your pump.
Parts included in the kit are marked with an
asterisk, for example (401*). Use all the parts in
the kit for the best results.
Fig. 12 _____________________________________________________________________________________
20 819.4486
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 13.
1. Relieve the pressure.
2. Remove the manifolds and disassemble the ball
check valves as explained on page
3. Using 13 mm socket wrenches, remove the screws
(107 and 108) holding the fluid covers (101) to the
air covers (23). Pull the fluid covers (101) off the
pump. See F . 12.
IG
4. Unscrew one outer plate (105) from the diaphragm
shaft (24). Remove one diaphragm (401), and the
inner plate (104). See F
NOTE: PTFE models include a PTFE diaphragm (403)
in addition to the backup diaphragm (401).
5. Pull the other diaphragm assembly and the
diaphragm shaft (24) out of the center housing (1).
Hold the shaft flats with a 19 mm open-end wrench,
and remove the outer plate (105) from the shaft.
Disassemble the remaining diaphragm assembly.
1
You must torque the eight long screws (108) first, then the
short screws (107). Torque to 22-25 N•m. See Torque
Sequence, page 30.
2
Arrow (A) must point toward air valve (B).
B
23
Warning
.
19
. 13.
IG
101
2
A
107
1
108
1
04707B