Franklin Electric I Series Installation, Operation And Maintenance Manual page 12

LUBRICATION
Closed-coupled Units
Bearings are located in and are part of the motor. For lubrication
information, refer to motor manufacturer's instructions.
Bearing Frame
The lubrication of the ball bearings will depend on speed, load,
ambient temperature, contamination, moisture, intermittent
or continuous service, and other factors. These regreasing
recommendations are general in nature and are to be used
with good judgment and consideration of the pump service.
The following is a suggested lubrication interval chart.
Frame Size 2,000 RPM
8.5 AK Frame 5,000 hrs
12.5 AK Frame 2,500 hrs
To lubricate the ball bearings, remove the plastic covers from the
zerk fittings. Ensure that the zerk fitting and the end of the grease
gun are clean. Use only a hand-operated grease gun with Chevron
SRI Grease or equivalent. Under normal operating conditions
adding approximately 2 oz. per service interval would be expected.
DISASSEMBLY
Verify the following:
1. Driver is shut down and power is locked out.
2. If pump components are hot, allow to adequately cool.
3. Suction and discharge valves are shut.
4. Pump is drained.
Review all safety information and follow the instructions in the
manual, as well as all tags, labels, and decals attached to the pump
or related equipment.
Liquid End (steps are all "if applicable")
1. Remove volute case bolts.
2. Remove volute from pump bracket.
3. Inspect volute wear ring and replace if worn.
4. While restraining shaft with an appropriate tool (or strap
wrench), remove impeller bolt. CAUTION: Impeller bolt
may need to be heated to assist in removal. Discard bolt
if heated.
5. Remove impeller washer if present.
6. Carefully remove impeller from shaft by one of these methods:
1. Insert two pry-bars 180° apart between the impeller
and bracket. Carefully pry off impeller.
2. Use an appropriately sized gear puller.
7. Remove impeller key.
8. Remove bracket bolts.
9. Remove seal housing bolts and remove the bracket from
the driver. Depending on the configuration, this may remove
the seal box along with the packing or mechanical seal.
10. Inspect shaft sleeve. Remove and replace if damaged.
CAUTION: Shaft sleeve may need to be heated to assist
in removal.
11. Remove the mechanical seal stationary seat form the
bracket. Discard.
12. Inspect bracket hub wear ring and replace if worn.
12
1,800 RPM 1,200 RPM
7,500 hrs 10,000 hrs
3,500 hrs 5,000 hrs
Disassembly of Bearing Frame or SAE drive models.
1. Remove shaft slinger from shaft.
2. Remove shaft key from keyway.
3. Remove bearing frame cover.
4. Remove shaft assembly from bearing frame.
5. Remove lip seals from cover and bearing frame.
Discard and replace if worn.
6. Unthread and remove shaft bearing retainer, or remove
snap ring and bearing retainer.
7. Use bearing puller or arbor press to remove ball bearings.