2. Maintenance and Inspection
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2.1 Periodic inspection
[1] Check to ensure stroke speed is not lowered. (This should be done at least once a month.)
The stroke speed may be lowered due to air leakage causing an air consumption increase. Such a condition may be
attributed to the wear of the lip seal. Replace the lip seal as necessary.
* This repair work shall be conducted by Iwaki.
[2] Check if bolts on the housing are loose. (This should be done at least once a month.)
Release the discharge-side pressure first. Then stop the pump and wait until the pump temperature is lowered to
room temperature to tighten the bolt slowly and carefully.
Fastening torque for FS-15HT1: 9.8N
•
m
FS-30HT1: 15.7N
•
m
FS-60HT1: 21.6N
•
m
[3] Operation of the pump after a long suspension
Supply air to the pump (approx. 0.196MPa) and confirm there is no air leakage from the pump discharge port before
restarting the pump.
WARNING
¡
Wear protectors
Make sure to wear protective gear (protective goggles, cap, mask, etc.) when carrying out
maintenance and inspection work.
¡
Release pressure out of piping
Residual pressure in the piping may force the liquid and cause an unexpected accident. Release the
residual pressure before starting the work.
¡
Power OFF
Make sure no one turns on the power switch while work is being done on the pump. Be sure to turn
off the power switch before you start any maintenance/repair work concerning the pump. If the
working site is noisy or under conditions of low visibility, you should display a notice which clearly
states “Power OFF (Maintenance) " near the power switch in order to inform other personnel about
the situation. Power ON executed by any other person than the operator/service personnel may
result in a serious accident. The operator must take special precautions to avoid accidents.