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Troubleshoot - Pelton_Crane OCR, OCM, RPI

 

 

 

 

 

TROUBLE SHOOTING GUIDE

SYMPTOM

ANALYZE

REMEDY

NO CONTROL OF

A. OVERTEMP SWITCH

A. RECALIBRATE FROM COLD START.

PRESSURE/TEMPERATURE

B. THERMISTOR ASSEMBLY

B. RESISTANCE SHOULD BE 1 MEG Q @ 77°F ± 20%.

 

C. SOLID STATE CONTROLLER

C. MEASURE VOLTAGE FROM COMMON TERMINAL OF POWER SWITCH NO. 2 TO COMMON TERMINAL OF FUNCTION SWITCH IF 120 VOLTS, BOARD IS OPEN. IF 0 VAC, BOARD IS GOOD.

 

D. CENTER HEATING ELEMENT

D. POSSIBILITY OF SHORT IN HOT SIDE OF LINE. TRACE OUT HOT SIDE OF LINE FROM POWER CORD TO SWITCHES FOR A SHORT. CHECK CENTER ELEMENT FIRST.

 

 

 

WILL NOT BUILD UP TO STERILIZING PRESSURE/

A. DOOR

A. CHECK DOOR TO MAKE SURE IT IS IN THE LOCKED POSITION AND NOT LEAKING.

TEMPERATURE

B. DOOR SWITCH (OCR+ ONLY)

B. CHECK SWITCH POSITION AND READJUST IF NECESSARY.

 

C. UNIT LEVEL

C. USE LEVEL AND ADJUST FEET IF NECESSARY.

 

D. AMOUNT OF WATER ADMITTED DURING FILL CYCLE

D. WHEN PROPERLY FILLED, WATER SHOULD COVER FILL PLATE.

 

E. POTENTIOMETER ON CONTROLLER

E. TURN CLOCKWISE TO CALL FOR MORE HEAT.

 

F. CENTER HEATING ELEMENT

F. CHECK RESISTANCE OF ELEMENT, IT SHOULD BE:

• ~ 10Q FOR OCM

• ~ 8Q FOR OCR OR OCR+

 

G. OVERTEMP SWITCH

G. RECALIBRATE FROM COLD START, OR REPLACE AND CALIBRATE. (PCT042).

 

H. THERMISTOR

H. CHECK RESISTANCE. SHOULD BE 1 MEG Q @ 77°F ± 20%.

 

I. FRONT POTENTIOMETER

I. CHECK RESISTANCE 20K Q ± 10%.

 

J. SOLID STATE CONTROLLER

J. MEASURE VOLTAGE FROM TOP TERMINAL

OF NO. 1 POWER SWITCH TO COMMON TERMINAL OF FUNCTION SWITCH. (IF 120 VAC BOARD IS PROBABLY OPEN; IF 0 VAC, BOARD IS PROBABLY GOOD). THIS IS PROVIDED THERE IS CONTINUITY THROUGH FUNCTION SWITCH, OT SWITCH AND HEATING ELEMENT.

 

K. MAIN VALVE (FILL/VENT VALVE)

K. CHECK TEFLON SEATS FOR SCORING OR TRASH LODGED AROUND SEATS. IF SCORED, REPLACE. IF TRASH OR DEBRIS, CLEAN AND RE-ASSEMBLE.

 

L. FUNCTION SWITCH

L. CHECK FOR ACTIVATION OF SWITCH BY MAIN VALVE CAM. ADJUST POSITION OF SWITCH ARM SO IT IS DEPRESSED AND SWITCH IS CLOSED IN THE STERILIZER MODE.

 

M. ROCKER ARM

M. VISUALLY CHECK FOR ROCKER ARM DEPRESSING PUSH ROD IN STERILIZE MODE. CHECK FOR CLEARANCE AND ADJUST (FLATTEN) CAM SHAFT IF NECESSARY.

 

 

 

THERMOMETER READS

A. BELLOWS

A. REPLACE BELLOWS, IF NECESSARY (PCB001).

MORE THAN 4°F BELOW REQUIRED TEMPERATURE

B. TEMPERATURE GAUGE

C. PRESSURE GAUGE

B. REPLACE TEMPERATURE GAUGE, IF NECESSARY (PCG050).

C. REPLACE PRESSURE GAUGE, IF NECESSARY (PCG040).

AT GIVEN PRESSURE

D. AIR VALVE HOUSING

D. CLEAN AIR VALVE HOUSING AND/OR REPLACE.

 

 

 

THERMOMETER READS

A. TEMPERATURE GAUGE

A. REPLACE TEMPERATURE GAUGE, IF NECESSARY.

MORE THAN 4°F ABOVE REQUIRED TEMPERATURE AT GIVEN PRESSURE

B. PRESSURE GAUGE

B. REPLACE PRESSURE GAUGE, IF NECESSARY.

 

 

 

PILOT LIGHT BULBS SLOW

A. LINE VOLTAGE

A. CHECK LINE VOLTAGE.

TO LIGHT WHEN AUTOCLAVE IS TURNED ON

B. BULB

B. REPLACE BULB (PCL027).

 

 

 

TIMER BELL WILL NOT RING

A. TIMER

A. REPLACE TIMER, IF NECESSARY (PCT049).

AT END OF TIMING CYCLE

B. TIMER BELL OFF-CENTER

B. LOOSEN NUT ON BACKSIDE OF BELL AND RECENTER.

 

C. TIMER POSITION

C. LOOSEN NUT ON TIMER SHAFT, ROTATE TIMER UNTIL TOP MARK IS AT 12:00 POSITION.

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