Maintenance
Waukesha Cherry-Burrell
Page 32
95-03077
April 2005
Maintenance
Important Safety Tips
DANGER:
Do not put your hand into the yoke or body of
a pneumatically actuated valve.
Detaching Port Connections:
1.
Drain all pipe system elements attached to the valve
and, if necessary, clean or rinse.
2.
Remove or block all fluid and gas lines to prevent
material from entering all pipe system elements
attached to the valve.
3.
Shut off delivery of control air, unless it is required
for the removal of the valve stem/actuator assembly
from the body.
CAUTION:
Only an authorized electrician should
disconnect power.
4.
Disconnect the electrical supply and lock out all
power. If the valve has a control module with a
solenoid, air and electric must remain ON until the
valve is opened and the clamp removed. This will
separate the stem/actuator assembly from the body.
Inspection
W-series 3-piece control modules require no special
maintenance.
However, visual inspections should be made between
maintenance periods to check switches and confirm valve
cycle operation.
Perform routine inspections frequently. See
"Troubleshooting" on page 46.
Maintain an adequate stock of replacement parts. Setup
specific inspection and servicing schedules to maintain
efficiency and avoid unexpected shutdowns.
Inspect the following on a regular basis:
•
switch settings and operation
Maintenance Intervals
Maintenance intervals can only be determined by the user
and the specific application, since they depend on the
following conditions:
•
Daily period of operation.
•
Switching frequency.
Disassembly
1.
Disconnect power and air.
2.
Remove acorn nuts (Figure 43, item A) and lift clear
cover (item B) off module base.
3.
Remove socket head cap screws (Figure 44, item D)
to disconnect control top base (item C) from actuator.
Assembly
Install in reverse order as described above. Take care to
ensure the (2) O-rings beneath the control module are
correctly positioned prior to tightening the socket head cap
screws (figure 44, item D). Refer to exploded parts
drawings.
Figure 43 - Control Top Removal
Figure 44 - Control Top Base Removal