Glow-worm Miami 4 - Manual (Page 16)

16 221904D
9 Servicing and Replacement of Parts
Diagram 9.3
9504
9.4 To Remove the Piezo Generator
Remove the case as section 9.1.
Disconnect the electrode lead from below the pilot electrode,
see diagram 9.1.
Disconnect the control spindle & adapter from the gas tap by
removing the split pin, see diagram 9.2. Lift the adapter clear of
the gas tap spindle.
Remove the circlip holding the piezo generator to the tap , see
diagram 9.2.
Replace in the reverse order. Make sure that the control knob
with spindle is correctly turned to agree with the gas tap position
before refitting the split pin.
9.5 To Remove The Complete Burner Module,
Pipes and Pilot
Remove the case as section 9.1.
Support the inlet isolating elbow to avoid straining the pipework
and disconnect the appliance from the elbow.
Disconnect the control spindle & adapter from the gas tap by
removing the split pin, see diagram 9.1. Lift the adapter clear of
the gas tap spindle.
Detach the left end of the burner module from the radiant box by
removing one screw, see diagram 9.3.
Carefully slide the burner module to the right to free it from the
right side of the radiant box.
Remove the pipes, gas tap or injectors as required.
Replace in the reverse order.
Take care when replacing the injectors. The injectors have
ceramic tips at each end. It is important not to allow jointing
compound to get on either end of the injectors.
Make sure that the control knob with spindle is correctly turned
to agree with the gas tap position before refitting the split pin.
RETAINING
SCREW
BURNER
MODULE
BURNER
MODULE
BURNER MODULE
RETAINING LIP
9589
INJECTORS
Diagram 9.2
9477
PILOT PIPE
PIEZO
GENERATOR
ADAPTOR
SPLIT PIN
CIRCLIP
CONTROL
SPINDLE
THERMOCOUPLE
CONNECTION
GAS TAP
9.6 To Grease the Gas Tap
Remove the burner module as section 9.5.
Remove the circlip holding the piezo generator to the tap.
Remove the two screws from the head of the tap.
Remove the spindle and spring from the tap.
Note the position of the slot in the plug. Mark this position on the
tap body.
Rotate the plug and pull it out of the tap.
Clean and grease the plug lightly with a suitable grease. Do not
apply excessive grease. Particularly, make sure that the gas
ports are not restricted by grease.
Push the plug back into the tap body. Line up the slot in the plug
with the mark previously made on the tap body.
Reassemble in the reverse order making sure that the
components are correctly engaged. Check the operation of the
tap and piezo. Make sure that the control knob with spindle is
correctly turned to agree with the gas tap position before
refitting the split pin.