ONLINE ELECTRONICS LTD
3015_5001_A01
Page 14 of 17
5.
MAINTENANCE
Familiarise yourself with all of the rules for the safe operation of this equipment as described in
Section 3
5.1.
O-RING REPLACEMENT
1.
Familiarise yourself with all of the warnings given at the start of Section 5 MAINTENANCE.
2.
Using a 10mm AF Allen key fully remove the bleed screw.
3.
Using a 2.5mm AF Allen key fully unscrew the M5 locking grub screw on the PCB and
BATTERY ENDCAPS. The grub screws may be screwed back in 3 turns to prevent them
getting lost.
4.
Using the supplied ENDCAP REMOVAL TOOL, fully remove the BATTERY ENDCAP, any
batteries and battery discs, then the PCB ENDCAP.
5.
Referring to the figure below, remove all O-rings and clean all sealing surfaces on all parts.
6.
Examine all surfaces for signs of corrosion, scoring, and other damage. If there is
excessive damage the mechanical parts may need to be replaced.
7.
Lightly grease all sealing surfaces using a suitable grease (e.g. DOW CORNING MOLYKOTE
111 COMPOUND).
8.
Lightly grease each O-ring with a suitable grease (e.g. DOW CORNING MOLYKOTE 111
COMPOUND) before fitting.
9.
Referring to Section 4.8 BATTERY REPLACEMENT re-insert the batteries and battery discs,
then refit the BATTERY ENDCAP to the BATTERY end of the housing and the PCB ENDCAP
to the PCB end of the housing using the ENDCAP REMOVAL TOOL. Do not use a vice or
spanner, the endcaps only need to be hand tight.
10.
Tighten the M5 grub screw on each ENDCAP (until the grub screw engages with the
housing to lock each endcap in place). Note that very little torque is required. Damage
may occur if over tightened.
11.
Examine the bleedscrew spring pin for any signs of damage, ensure it is not stuck and has
a smooth travel of approximately 3mm. Fully tighten the bleed screw then loosen the bleed
screw 3 full turns to switch the transmitter off and use some tape to hold the bleed screw
in this position to prevent it being lost or the transmitter being accidentally turned back on.
