7
6. Maintenance, Inspection, and Repair
6.1. Cautions for Maintenance, Inspection, and Repair
See Danger (3), P04
See Warning (4)(17)(18), P04,05
See Caution (9)(10)(11), P06
See Note (13), P07
Maintenance and repair by the customer’s repair technician is limited to the following procedures.
Do not undertake other repairs, or make modifications other than the standard options supplied
by the manufacturer.
1) Replacing diaphragms
2) Replacing inlet and outlet valves
3) Replacing O rings
6.2 Maintenance
The following checks are required at least once every three days during operation.
(1) Check for abnormal noises.
(2) Check for abnormal heating of the pump.
(3) Check that gas is discharged normally.
If a problem is found, take the measures described in 6.5 Troubleshooting List.
6.3 Regular Inspections
Inspect consumables after the first 3000 hours of operation, and replace and clean in
accordance with the Replacement and Cleaning Guide on the following page. Refer to 6.4
Replacing and Cleaning Consumables for procedures.
Request replacement by the manuf
acturer’s service division if a repair technician is not available.
Table 6.1 Consumables List
Components
Quantity
Material
Average life
Diaphragms
2
Synthetic rubber (EPDM)
In contact with gas: PTFE
6,000hr
Inlet and outlet valves
5
PTFE
6,000hr
O rings (P-10A)
2
Synthetic rubber (FPM)
6,000hr
O rings (S-28)
4
Synthetic rubber (FPM)
6,000hr
O rings (AS568-110)
4
Synthetic rubber (FPM)
6,000hr
Bearings
1 set
―――
15,000hr
Note that the average life for a component varies with the conditions of use.
Always follow 4.1 Cautions for Operation, and remember that life is extended by running the
pump at minimal load (running the pump at minimal load is operation at the achieved pressure
(inlet closed)).
Bearings are replaced by the manufacturer’s service division.
!
Danger
!
Warning
!
Caution
!
Note
