Finish Thompson PFS 162859 & above - Manual (Page 7)

5
Installation & Maintenance Instructions
Installation
1. Remove the drum pump and motor from its packaging and inspect for shipping damage.
2. Turn the pump coupling to verify there is no binding. Verify the housing cover (item 16) is on tight (it has
a left hand thread.
3. Adjust the coupling so that the empty slots in the insert are at 3 and 9 o’clock with the pump discharge at 12
o’clock.
4. Install the motor according to instructions in the appropriate motor manual.
5. Attach 1” i.d. discharge hose and secure with hose clamp.
6. Install into the container.
Maintenance
Disassembly
1. Remove the housing cover (item 16) by turning it clockwise (left hand thread) while gripping the impeller
housing (item 13).
2. Turn the impeller until a hole in the shaft can be seen through the square slot in the impeller housing (item
13), and insert 3/32 pin into the hole. Holding the pin, turn the impeller (item 15) counterclockwise (right-
hand thread) and remove it.
3. Remove the impeller housing (item 13) by gripping the intake tube and turning the housing clockwise
(left hand thread).
4. Place a wooden board or rubber mat on the floor (to protect the threads on the bottom of the shaft) and
gently tap the shaft (item 14) on it until the inner tube (item 9), shaft sleeve (item 10), and bottom bearing
(item 3) drops out. Continue to tap the shaft until both bearings (item 3) are exposed at the top of the pump.
5. Pull the bearings and shaft out through the top of the pump.
Inspection
1. Check the housing cover (item 16), the impeller (item 15), and the impeller housing (item 13) for wear, rub-
bing, or damage from foreign objects. Replace if damaged.
Note: The double impeller design of this pump is dependant on the impeller working correctly. Any damage
to the impeller can cause pump failure.
2. Inspect the pump shaft (item 14) for wear in the bearing (item 11) and the lip seal (item 4) areas. Replace
the shaft if needed.
3. Inspect the bottom bearing (item 11) for internal wear. Inspect all o-rings (items 8 &12) for nicks or chemi-
cal attack. Replace as needed.
4. Inspect the bearing assembly (item 3) for rust or corrosion.
5. If the bearing assembly needs to be replaced, unthread it from the shaft. Insert 3/32” pin into the hole at
the bottom and hold the bearing assembly by the half coupling. Turn the shaft counterclockwise (right
hand thread) to loosen and remove. If corroded, then a penetrating fluid may be used on the threads to help
loosen.
Note: Never reuse the lip seal.