GMC 1976 ZEO 6083 Maintenance Manual page 772

24G- 1 0 FURNACE
WARNING : BEFORE ANY REMOVAL OR DISAS-
SEMBLY PROCEDURES ARE PERFORMED ON
THE FURNACE, BE SURE L .P . GAS IS COM-
PLETELY TURNED OFF AT THE L.P . GAS TANK
AND REMOVE FURNACE FUSE FROM FUSE
BLOCK IN LIVING AREA ELECTRICAL COM-
PARTMENT.
WARNING : DUE TO THE POSSIBILITY OF IN-
JURY ON SHARP SHEET METAL, CARE
SHOULD BE TAKEN ANY TIME SERVICE IS PER-
FORMED ON THE FURNACE.
FLAME SWITCH REPLACEMENT
REMOVAL
1 . Gain access to right-side of furnace. Remove
access cover (figure 11).
2. Disconnect two wires from flame rod (See fig-
ure 12).
3 . Using 11/16-inch wrench, unscrew flame rod
from heat exchanger .
INSTALLATION
1 . Install flame rod in combustion chamber open-
ing. Tighten securely .
2. Connect two wires to flame rod (figure 12).
3 . Install access cover (figure 12).
Figure 1 1-Removing Furnace Access Cover
Figure 12-Location of Furnace Flame Rod
REMOVAL
SPARK ELECTRODE
REPLACEMENT
1. Gain access to right-side of furnace. Remove
access cover (figure 11).
2. Remove hi tension cable (See figure 13) from
spark electrode.
Figure 13-Removing Spark Electrode