Zanussi ZGG649 - Manual (Page 11)

11
Servicing
A: Removal Of Hob Top
1. Remove the panstands and each burner cap
and crown.
2. Lift the hob from off the working top.
3. Remove the two self tapping screws from each
burner and the two fixing screws on the right
hand side of the hob.
B: Removal Of the Hob Taps
(Isolate Electric Supply)
1. Follow the procedures in Section A.
2. With the aid of a 7mm spanner remove the
clamping bolt from the fixing clamp.
3. Loosen the pipe connection nut from the gas
tap with the aid of a 16mm spanner. Remove
fixing clamps.
4. Reassemble in reverse order and carry out leak
test.
C: Removal Of Mains Terminal
Block
(Isolate Electric Supply)
1. Follow the procedures in Section A.
2. Disconnect supply flex connections from
terminal block.
3. From the underside of the hob remove 1 self
tapping screw from the terminal block.
4. Reassemble in reverse order.
D: Removal Of Burner
1. Follow the procedures in Section A.
2. With the aid of a 12mm spanner loosen off the
pipe connection nut.
3. From the underside of the hob remove 2 self
tapping screws from the burner body.
4. Reassemble in reverse order and carry out leak
test.
E: Removal Of Ignitor Unit
(Isolate Electric Supply)
1. Follow the procedures in Section A.
2. Disconnect H.T. leads and the ignition switches
connector.
3. With the aid of a pair of thin nose pliers, pull
the spring clip sidewards off of the underside
of the ignitor.
4. Reassemble in reverse order and check with
wiring diagram for correct reconnection.
F: Remove Taps Ignition Switches
(Isolate Electric Supply)
1. Follow the procedures in Section A.
2. Disconnect the switches connector from the
ignitor unit and remove the supply cables
pulling the tabs connection off.
3. Reassemble in reverse order and check with
wiring diagram for correct reconnection.
Technical Maintenance
Check at regular intervals the condition and
serviceability of the gas connection hose and
pressure regulator, if any is fitted; in case of
malfunction, do not repair but replace the whole
faulty part.
To ensure a smooth and safe operation, it is
necessary to periodically grease the gas taps.
Act as follows:
1) Carry out steps 1 to 4 as explained in "Removal
of Hob Top" (see top of page).
2) Remove screws 1 and 2 (see diagram)
3) Remove the gas tap shaft and flange.
4) Slide out the Venturi tube, clean it thoroughly
and then apply a thin layer of grease of a non-
soluble to hydrocarbons type and suitable for
gas taps.
5) Make sure that no axcess grease abstructs the
gas tap holes.
6) Refit everything very carefully following this pro-
cedure in reverse order.
FO 1042
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