8
<Replacement Guide>
Replace or clean components if performance is reduced or the following symptoms become
apparent.
Diaphragms
: Replace if PTFE components are worn or peeling, or if rubber
components are deformed, hard or cracked.
Inlet and outlet valves : Replace if deformed, hard, or cracked.
O rings
: Replace if hard, cracked, or stretched.
Bearings
: Request manufacturer for repair if abnormal noises, or abnormal motor
vibration, is noted.
Table 6.2 Locations for Maintenance and Inspection
Period of
operation
Inspection item
Replacement guidelines
Method of
inspection
3,000 hours
Diaphragms
Wear of PTFE components,
deformation, hardening, or
cracking of rubber components
Visual
inspection
Inlet and outlet
valves
Deformed, hard, or cracked
Visual
inspection
O rings
Hard, cracked, or stretched
Visual
inspection
Bearings
Abnormal noises
Listen
6.4 Replacing and Cleaning Consumables
See Caution (11), P06
Always use a mask and gloves when replacing components to prevent ingestion of microscopic
particles resulting from wear of components.
Use the following tools, and refer to the photographs, when replacing cleaning components.
Contact the manufacturer’s service division for this work if the necessary tools are not available.
1. Phillips screwdriver : No.2
2. Hex socket wrench : (1) 4mm (2) 5mm
3. Torque wrench
: (1) With 4 mm socket. Ensure that it is capable of being set to 0.5 N
･
m
torque.
(2) With 5 mm socket. Ensure that it is capable of being set to 12 N
･
m
torque.
4. Spanners
: 14mm or equivalent adjustable spanner
5. Vacuum grease
: For replacing Diaphragms and O rings.
6. Solvent
: Use a solvent such as ethyl alcohol which has no effect on
rubber components.
7. Paper towels etc
!
Caution
