Welch MXPC 603 T - Operating Faults

Operating faults
Operating Manual MXPC 303 Z/603 T 29
7 Operating faults
OPERATING FAULTS INSIDE THE DEVICE
To eliminate operating malfunctions inside the device, follow the instructions
and notes in chapter 8 Maintenance and 8.3 Repairs carried out by the operator
must be observed!
NOTE Authorisation to remove the operating malfunctions (see chapter 2.2.2 Overview of
responsibilities).
1: User/(1): only specially trained users
2: Skilled worker
3: Manufacturer
Type of error
Cause:
Action
Authorised
Vacuum pump
does not start
Device switched off
Switch on the device at the main
switch (Fig. 5-2/2)
1
Incorrect operating
voltage
Check operating voltage
according to chapter 3.2
Characteristic values
2
No power supply
Check mains connection
2
Mains cable defective
or brittle
Replacing the mains cable
1
2
Thermal switch has
been triggered
Reset according to chapter
4.2.4 Motor thermal protection
1
Blocked drive
Change diaphragm
2
(1)
Defective drive
Notify Support
1
3
Defective motor
Notify Support
1
3
Vacuum pump
generates no or
only insufficient
vacuum
Leaking connected
equipment and/or
elements
 Detect leaks
 Seal the gaskets/hoses and
replace if necessary.
1
Pump unit is leaking
Check seal/replace if necessary:
 Hose connections
 Screw connections.
(1)
Pump head is leaking
Notify Support
1
3
Faulty diaphragm
Diaphragm replacement
2
(1)
Faulty valves
Valve replacement
2
(1)
Soiled pump unit
General maintenance/cleaning
1
Soiled valves
Clean valves
(1)
Noise coming
from the device
Soiled pump unit
General maintenance/cleaning
1
1
See chapter 9.2 Contact details for Support or to place an order
2
See chapter 8.3 Repairs carried out by the operator