Portable Sampling Drive Operating Manual
Masterflex
4-3
Maintence
(Continue)
Section 4
Maintence
DANGER:
NEVER short or connect the terminals of the battery
terminals together. Shorting of the battery terminals causes rapid
internal heating of the battery resulting in the explosion of the battery
and severe injury or the death of the operator.
CAUTION:
Do not reverse the connections to the battery. If the battery
connections are reversed, damage to the unit will occur.
G. Reverse the service process to install the battery.
Connect the RED wire
to the battery terminal (positive). Connect the BLACK wire to the
battery terminal marked – (negative).
CAUTION:
Fully charge the unit before using for the first time. Damage
to the internal battery can result if the battery is in a fully discharged
state and operation of the unit is attempted.
H. Fully charge the battery after replacement. See CHARGING THE BATTERY.
DANGER:
DO NOT BURN OR INCINERATE THE BATTERY. THE
BATTERY MAY EXPLODE CAUSING SEVERE INJURY OR DEATH OF THE
PERSONNEL IN THE AREA. (Dispose of the old battery by recycling.)
Motor Brush Check/Replacement (See Figure 3)
WARNING:
Turn drive off, remove all the power to the unit, including
the AC/DC Power Supply/Converter, Automotive Power Adapter or
other external power source if present before servicing the motor
brushes. Place the Mode of Operation Switch (RUN/CHARGE) in the
“CHARGE” position and all other switches in the off position. This will
help prevent accidental activation of the drive mechanism so fingers
or loose clothing will not get caught in the drive mechanism.
NOTE:
The brushes should be checked every 2000 operating hours or every 6
months or if erratic operation occurs.
A. Place all control panel switches in the off position and disconnect the AC/
DC Power Supply/Converter if present.
B. Remove the fourteen (14) screws holding the control panel assembly to the
housing using a Phillips screwdriver.
C. Gently remove the control panel from the housing and disconnect the wires
from the battery.
D. Remove the brushes using a screwdriver and rotate the brush holder 90°
CCW. The brush should pop out.
E. Vacuum any brush dust from the brush holder openings.
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