Positive Displacement Pump - Maintenance
17
LN-9415-01
MAINTENANCE
CALIBRATION
The calibration value will vary based on
viscosity, flow rate, temperature, and other
factors. Refer to appropriate associated
equipment for calibration procedure.
TROUBLESHOOTING
Gear Pump problems can be caused by
improperly filtered fluid
. Particulates in the
fluid can cause gear binding. Maintain the fluid
filters according to the instructions from the
filter manufacturer. If repeated disassembly
and cleaning for removal of solids and particu-
lates occurs, inspect the entire fluid supply
system and evaluate the system cleaning
cycle.
SERVICING
Depressurize the gear pumps before attempt-
ing to remove from manifold. Remove the gear
pump for service to a suitable clean area to
perform maintenance. Using a hex key
wrench, remove all 4 bolts. See pages 11-15
for teardown and reassembly procedures for
both series of gear pumps.
