Gardner Denver HD-2250, Operating And Service Manual

Page: 25 / 47

Page 18
PERIODIC ROUTINE MAINTENACE
SCHEDULE
Performance
of the periodic routine
maintenance tasks, described in this
section, will ensure long, economical, and
trouble free operation of this pump. It is
highly recommended that the customer set
up a maintenance program during the run-in
period. The periodic maintenance data
should be recorded and kept with other
pump
documents. The following
recommendations, based on previous
experience, should serve as a guideline for
establishing a good maintenance program.
The periodic maintenance schedule is
divided into daily, monthly, and quarterly
tasks to be performed by the user after the
pump has gone through 100 hours of wear-
in. For the tasks performed during the wear-
in period, see "Startup and New Pump Run-
In Procedure," page 16.
Daily Routine Maintenance Tasks
1.
Check the oil level in the lube oil
reservoir.
2.
Periodically monitor lube oil operating
pressure
and temperature. The
maximum oil operting temperature
depends on a particular grade of oil
used in the pump lube system. (See
FIGURE 3-1, Page 16).
3.
Check the lube pump suction inlet
vacuum. A vacuum gage reading
higher than 8" Hg or 4 psi or 0.28 bar
indicates that the suction strainer
and/or oil filter element are clogged.
The strainer must be cleaned, and the
oil filter element replaced as necessary
as soon as the pump can be shut down
for a short period of time to perform
these tasks.
4.
Listen for any abnormal noise or rough
operation, which may indicate the need
for fluid end maintenance such as
changing valves or valve seats. Due
to very high pressures in the triplex
pump fluid end, worn valves and seats
should be changed as soon as possible
to prevent washing them out with the
pumped fluid.
5.
Check the plunger/packing lubrication
pump for proper operation. Insure
packing nut is tightened sufficiently into
fluid cylinder. Recheck tightness after
extended continuous operation.
Monthly (100 hour) Routine Maintenance
Tasks
1. Clean the strainer and replace the oil
filter element.
2. Check the entire lube system for leaks
and eliminate them.
3.
Check all fluid end expendables such
as valves, packings, and valve seats
and replace them as necessary.
4.
Check the power end plunger seals
and replace them as necessary.
Quarterly (300 hour) Routine
Maintenance Tasks
1.
Change the lube oil and clean the oil
reservoir thoroughly.
2.
Clean the lube system strainer and
replace the oil filter elements.
3.
Re-tighten the critical bolt joints
following torque specifications given in
Section 6.
4.
Add grease to any exposed bare metal
to prevent corrosion.
5.
Clean or replace the breather cap filter
element.
6.
Check all pressure, temperature, and
vacuum gages for proper operation
and replace as necessary.
7.
Check all lube system warning and
alarm devices for proper operation and
replace if found defective.
8.
Check supply of on hand expendables
such as packings, valves and seats,
maintenance items such as seals, O-
rings, oil and breather filter elements,
and also maintenance tools. Order to
replenish supplies as necessary.
The periodic maintenance procedures are
very simple and can be performed in a short
period of time.