7
alpha series lWa/lWX genset operators' handbook
Warning
Untrained people must not start or
operate any diesel gener a ting set.
It is dangerous. Operators must
read and follow the instructions
contained in this manual as well as
the engine and alternator handbooks
supplied.
Before the first start, and at regular
intervals, check the fuel, lubricating
oil and coolant levels. For full details
refer to the
engine operators'
handbook.
When the set is running
• Wear ear defenders.
• Do
not
touch any electrical
connections.
• Do
not
run the set with any covers
or guards removed or damaged.
• Do
not
smoke near the generating
set.
• Do
not
touch any part of the
exhaust system.
• Do
not
breathe exhaust fumes.
When the set is at rest
• Do
not
touch the exhaust system
immediately after the engine has
stopped. It will still be very hot.
• Do
not
attempt any maintenance
or adjustments unless you have the
necessary knowledge and qualifications.
See
7. Routine Maintenance
and read
the precautions in this chapter.
• Do
not
work on the set before
disconnecting the starter battery.
Always disconnect the negative
terminal first, reconnect the negative
terminal last and use insulated tools.
• If work is to be carried out inside
control or contactor cubicles they
must
be isolated from both AC and DC
supplies.
1.5 preparing the battery
If batteries are supplied they can be
supplied 'wet' or dry-charged. Wet
batteries need to be charged. Dry-
charged batteries can normally be used
for operation after filling with battery
acid without initial charging.
Warning
Battery electrolyte is corrosive.
Batteries must be handled with care,
and protective clothing should be
worn.
preparing a dry-Charged battery
The following procedure should be
used to prepare a battery with factory-
sealed charge.
1. Remove the vent plugs.
2. Fill the individual cells of the battery
with sulphuric acid in accordance
with VDE 0510 of density 1.280 kg/l
(for tropical countries 1.230 kg/l)
1
up
to the maximum acid level mark, or
15 mm above upper edge of plates.
The temperature of the battery and
acid should be at least 10°C before
filling.
3. Allow the batteries to stand for 20
minutes, tilt slightly several times
and top up with acid to correct level
if required.
4. Clean and dry the outside of the
battery. Thinly coat the terminals
with petroleum jelly and fit the vent
plugs.
5. Clean the plant connections, thinly
coat with petroleum jelly and connect
the battery, making sure that the
positive cable is connected to the
positive terminal and the negative
terminal cable to the negative
terminal.
If the battery does not provide an
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