308553ZAE
23
Service
Diaphragm Repair
Tools Required
Torque wrench
One 7/16” (11 mm) and two 1/2” (13 mm) socket
wrenches
Phillips screwdriver
O-ring pick
13/32” EZY-OUT bearing extractor
Rubber mallet
Vise with soft jaws
Disassembly
NOTE: A Fluid Section Repair Kit is available. See page
27 for the correct kit. Parts included in the kit are marked
with an asterisk, for example (401*). Use all the parts in
the kit for the best results.
1.
Relieve the pressure. Disconnect all hoses.
2.
Remove the air valve from the pump (see page 16).
3.
Remove the manifolds (102) and disassemble the
ball check valves as explained on page 21. Always
replace the o-rings (108) with new ones.
4.
Using a 7/16” socket wrench, remove the clamp nuts
(113) and the grounding strip (112). Loosen the
clamps (111) and slip them over the housing (1). Pull
the covers (101) off the pump, then remove the
clamps from the housing. See the Detail in Fig. 16.
5.
Using a 1/2” socket wrench on both outer diaphragm
plates (103), unscrew one plate from the diaphragm
shaft (23). Remove one diaphragm (401), inner
diaphragm plate (118), and o-ring (404). Pull the
opposite diaphragm assembly and the diaphragm
shaft out of the pump housing (1). See Fig. 16.
Clamp the shaft in a vise with soft jaws and unscrew
the outer plate (103), then disassemble the
remaining diaphragm assembly.
6.
Inspect the diaphragm shaft (23‡) for wear or
scratches. If it is damaged, check the bearings (31‡)
also. Replace parts as needed. To remove the
bearings, place a 13/32 EZY-OUT in a vise. Position
the pump housing (1) over the EZY-OUT (see Fig.
16). Turn the housing in the direction shown by the
arrows to remove the bearing.
7.
Hook the shaft seals (30‡) with an o-ring pick and
pull them out of the housing (1).
8.
Clean all parts and inspect for wear or damage.
Replace parts as needed.
WARNING
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 11.
Tel: 866-777-6060
Fax: 866-777-6383
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910
