Waukesha Cherry-Burrell
Maintenance
April 2008
95-03083
Page 27
Maintenance
Important Safety Tips.
Detaching Valve and Control Module from
Service
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 any
material from entering all pipe system elements
attached to the valve.
3. Shut off the delivery of air, unless it is required for the
removal of the valve stem/actuator assembly from the
body.
4. Disconnect the electrical supply and lock out all
power. If the valve has a control module with a
solenoid, the air and electric supply 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 2-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 "Trouble-
shooting" on page 43.
Maintain an adequate stock of replacement parts. Set up
specific inspection and servicing schedules to maintain
efficiency and avoid unexpected shutdowns.
Inspect the switch settings and operation on a regular
basis.
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
Removal from Valve and Disassembly
The W-Series, 2-piece control module can be removed
from the valve while the valve either remains connected to
the piping system or is separately removed. Due to air
requirements and system interlock integrity, do not keep
the valve in service while removing the control module.
Removal from Valve
1. Disconnect the air.
2. Remove the (3) set screws behind the (3) plastic plugs
with tabs at the base of the module (Figure 40).
3. Lift off the control module, taking care not to strain or
stretch the wiring connector.
4. If required, disconnect the electrical supply and lock
out the power.
DANGER:
Do not put a hand into the yoke or
body of a pneumatically actuated valve.
CAUTION:
Only an authorized electrician
should disconnect power.
CAUTION:
Only an authorized electrician
should disconnect power.
A. Plug with tab
(3 places)
B. Set Screw
(3 places)
Figure 40: Control Top Removal
A
B
VA100-595