TECHNICAL INSTRUCTION Sumitomo Heavy Industries, Ltd.
CSW-71C 27
3-2 FUSE REPLACEMENT
3-2 FUSE REPLACEMENT
<Warning about electric shock>
This cryocooler includes a high-voltage section. Touching it may result in electric shock. Handle it with extreme
care.
Do not change the setting of the dial above the main power switch of the compressor unit under any circumstances.
Failing to observe this precaution may result in electric shock.
Be sure to turn off and Lock Out with OFF position the customer's main power before performing maintenance work
such as replacement of fuses. Failing to observe this precaution may result in electric shock.
Fuses are equipped inside of the Fuse Box for the Control Box.
Table 3.5 LIST OF FUSES
Fuse No.
Description Part Number Remarks
FU1
FU2
FU3
Class G Fuse 5A RE71WT0603
For Cold Head Motor,
Solenoid Valve
and DC circuit
FUSE REPLACING PROCEDURE
1） Loosen the screws that hold the compressor side panel, and remove the panel.
2） Replace the Fuses.
FU3
FU2
FU1
WARNING
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