D-Series Syringe Pumps - Isco

D Series Syringe Pumps
Section 5 Pump Maintenance & Repair
4. Insert a straight-edge screwdriver through the hole and
unscrew the brush retainer. It’s quite easy to drop the
retainer into the case if you aren’t careful. Using a larger
screwdriver or putting a dab of adhesive on the end of the
screwdriver will prevent this from occurring.
5. Once the retainer has been removed, the brush can be
pulled out. You can use needle-nose pliers or your first two
fingers to tug on the brush.
To replace the bottom brush
1. Connect the new brush to the wire lead.
2. Look through the hole on the case bottom and use your fingers
to push the wire lead so that the brush moves near the
slot.
3. When you have the brush aligned with the slot, use a
straight-edge screwdriver to push the brush into the slot.
4. Once the brush has been pushed into the slot, hold it in
place with the screwdriver. Then, holding the brush
retainer between your first two fingers, reach your hand
inside the pump case (between the circuit board and the
motor) and align the retainer over the slot.
5. Move the screwdriver as you put the retainer in place.
6. Then, tighten the brush retainer with a straight-edge
screwdriver.
Quick Disconnect /
Motor Brush Retainer (one of two)
Figure 5-7 D Series motor brush replacement
5-15