GE JGP989 Technical Service Manual page 7

Turn OFF Gas and Electric Supply
Before you begin, turn OFF the gas supply at the
shut-off valve. Disconnect the electrical supply
from the cooktop.
Shut-off valve
Convert Surface Burners
1. First remove, convert, and replace the left-side
surface burners and then the right-side surface
burners. Remove the grates, burner caps, and
burner heads. Remove the screws securing the
burner bases to the burners. Pull out the
electrodes without removing the electrode leads.
Grate
Brass
locator foot
2. Remove the brass orifice spud in the chimney
of each burner using a 9/32-in. (7 mm) nutdriver.
Note: The LP orifices are shorter than the natural
gas orifices.
3. Install the LP orifice spuds in their correct
positions by number.
Electrical supply
Burner cap
Burner head
Electrode
Burner
base
screw (2)
Burner base
84
84
LP (Propane) Gas 10" W.C.P.
Burner Output Rating in BTU/HR
Location BTUs
LF, LR 8,500
RR 5,500
RF 11,000
Note: For operation at elevations above 5000 ft.(1500 m),
equipment ratings shall be reduced at a rate of 2% for each
1000 ft. (300 m) above sea level before selecting
appropriately sized equipment, i.e., use smaller orifices.
Caution: When attaching the burner base to the
glasstop unit, tighten to 12 in./lbs max torque.
Overtightening will cause damage.
4. Replace the gaskets, burner bases, and
electrodes. Install the 2 screws in each burner
base. Do not overtighten. The maximum torque
is 10 in./lbs. Push the igniters all the way down
into the burner head.
5. Install the burner heads, burner caps, and
grates in their original burner positions.
Convert the Pressure Regulator
1. Locate the pressure regulator under the rear of
the cooktop.
2. Remove the nut from the pressure regulator
with an adjustable wrench.
Natural gas
Nut
LP gas
– 5 –
71
99
Front
Orifice Size
0.84 Lmm
0.71 Lmm
0.99 Lmm
Pressure
regulator