3
IMPORTANT
Pay close attention to Warnings and Cautions in
this manual. A WARNING describes a condition
that may cause severe personal injury or death if
allowed to happen. A CAUTION describes a
condition that may cause moderate injury or
property damage if allowed to happen.
GENERAL DESCRIPTION
The GT & GS cap lamp systems consists of a cap
mounted headpiece powered by a (lead-acid)
battery.
The basis of the headpiece in which some of the
internal connections are integral is as follows. A
selector switch is incorporated, which can switch
on either the large main bulb or the small
secondary bulb. The main bulb is held in the
reflector in a focused position by a screwed bush
from which a lead connects to one of the cable
termination points. The small bulb holder is
positioned at the top of the headpiece, being
connected internally to the cable termination. The
reflector fits over the small bulb and has a rubber
gasket around the rim to seal against the
headpiece lens.
PREPARING THE GT or GS CAP LAMP FOR
FIRST TIME USE
Battery charging
Every battery must be charged before it is used
for the first time.
1. Allow the battery to remain on charge for 24
hours.
2. Top off each cell with distilled water if
necessary (see filling battery). Never fill over
top of fill line.
Note:
Batteries which do not perform satisfactorily,
should be removed from service and cycled-
charged for 16 hours and discharged 8 hours.
Repeat several times until battery responds. If
battery does not respond after three or four
cycles, it should be replaced.
Never discharge completely!
3. After weekly shifts, the battery should be
placed on the charger following the
instructions included with the charger, and left
to charge the remainder of the weekend.
4. If cap lamp needs cleaning, use a mild
detergent and wipe. Do not submerge in
water.
Storage of batteries
All stored batteries with acid should be boost
charged for 24 hours every 3 months, and
immediately before being placed into regular
service.
Recommended storage temperature: 0oC to 27oC.
Filling battery (Type T5 only)
The electrolyte level should be maintained
between the two lines below the filling and venting
hole i.e. slightly above the top of the battery plate.
Normally topping up should not be necessary
more often than once every 4-6 weeks, and
should always be carried out when the battery is
fully charged. Only distilled or de-ionized water
should be used in topping off.
WARNING
The electrolyte level of all batteries should be
checked once each week, and after the battery
is charged (T5 battery only).
Water only when battery is fully charged. If the
battery is overtopped, there is a possibility
that electrolyte may leak out under certain
conditions.
Topping up
1. Fill the plastic bottle (P/N 651901) with
distilled or de-ionized water only.
2. Insert the nozzle of the filling tube into the
small hole provided in the battery window and
squeeze the bottle gently.
3. Fill until the electrolyte level is level with the
bottom one of the two scribed lines below the
cell window. The battery may have to be tilted
back slightly to allow the water to flow.
4. Repeat this procedure in adjacent battery cell.
CAUTION
The electrolyte is corrosive and can cause
burns. Take proper precautions to avoid skin
and eye contact.
