Vulcan-Hart ML-52952, ML-52953, ML-52947 STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT Cont

Models: ML-114555 ML-114554 ML-114556 ML-114553 ML-114557 ML-52954 ML-52948 ML-114957 ML-52949 ML-52951 ML-52952 ML-52950 ML-52947 ML-52953

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Page 31
Image 31
STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT (Cont.)

STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT (Cont.)

Fig. 37

5.If the millivolt reading is below 5 MV, replace the thermocouple.

6.If the MV reading is within tolerance, the safety valve should be replaced.

SAFETY VALVE REPLACEMENT PROCEDURES

TOOLS REQUIRED: 7/16" open end wrench, 11/16" open wrench, and 3/8" open end wrench.

1.Disconnect unit from main gas supply.

2.Disconnect thermocouple from safety valve (Fig. 38).

Fig. 38

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Page 31
Image 31
Vulcan-Hart ML-52952 STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT Cont, Safety Valve Replacement Procedures