Advertisement
Servicing
Pump Replacement (Photometer option)
Pump Replacement
(Photometer option)
7-16
Model 146i Instruction Manual
For instruments with the photometer option, use the following procedure to
replace the pump (see
Figure
Rebuilding"
on
page 5-9
Equipment Required:
110V pump
Philips screwdriver
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component.
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Disconnect pump power line from AC PUMP connector on the
measurement interface board.
Pump
Pump Bracket
Pump Mounting Screws (2)
(Bottom)
Figure 7-5. Replacing the Pump
3. Remove both lines from pump.
4. Loosen the four captive screws holding the pump to the mounting plate
and remove the pump.
7-5). To rebuild the pump, see
in the "Preventive Maintenance" chapter.
"Pump
Captive Screws (4)
Shock Mounts (4)
Floor Plate
Thermo Fisher Scientific
Advertisement
Troubleshooting
