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PERIODIC MAINTENANCE
Inspect the internal components, solution fittings
and electrical connections. Check for signs of fluid
leakage and tighten or replace fittings as
necessary. Make sure all electrical connections
and cables are in place.
SOLUTION PUMP
!! CAUTION - ONLY QUALIFIED MAINTENANCE
PERSONNEL SHOULD ATTEMPT THE
FOLLOWING REPAIRS
A solenoid type pump is fitted to the Bravo and
requires little maintenance other than occasional
inspection of the pump to check for any fluid
leakage from the inlet and outlet fittings. In the
event of a reduction in operating pressure, leakage
or pump failure, refer to the 'Fault Finding Guide'
and contact your Prochem Distributor
VACUUM MOTOR
!! CAUTION - ONLY QUALIFIED MAINTENANCE
PERSONNEL SHOULD ATTEMPT THE
FOLLOWING REPAIRS
The vacuum motor is lubricated for life - no
additional lubrication is required. The only other
maintenance that may be required is changing the
motor brushes. This should only be carried out
Bravo Manual 1/7/15
by an individual with THOROUGH knowledge of
electric motors.
The brushes should be changed before the
brush wears to within 3/8" of the brass holder.
With heavy usage we recommend that the
brushes be checked every 3 months. The
recommended inspection period for normal
usage is at least every 6 months. The estimated
brush life is approximately 400 to 450 hours, but
inspection and replacement should take place at
least every 350 hours to prevent the possibility
that brush wear may cause damage to the
vacuum motor.
On re-assembly, the lead wires must be kept away
from the rotating parts and the motor frame. Always
ensure that the green earth wire is re-connected to
the vacuum motor body to ensure safe operation.
To achieve maximum life, the brushes should be
seated on the commutator before full voltage is
applied. Do this by applying 50% of the rated
voltage for thirty minutes. In the event of electrical
or mechanical failure, refer to the General Fault
Finding Guide page in this manual and contact your
Prochem Distributor. Although some service parts
are available, we recommend that defective
vacuums be replaced.
Page 13 of 19
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