Finish Thompson TBP SERIES - 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.
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 discharge hose and install pump into the container.
Note: Pumps with the standard 1” barb spout ship with a variable orifice fitting, which limits the flow of the
pump to 10 gpm. As it is cut away, flow will increase minimum up to maximum flow (to increase flow, simply
trim back orifice) See Fig. 1.
Maintenance
Disassembly
1. Carefully place the pump head (item 5) in a vice (do not crush), and unthread the intake tube (item 6) by
turning it clockwise (left hand thread). Pull the intake tube (item 6) carefully off the bottom of the pump
shaft.
2. Holding the pump coupling half (item 2) in one hand, unthread the pump shaft (item 10) from the bearing
assembly (item 3) by turning it counterclockwise (right hand threads).
3. Remove the bearing assembly (item 3) and the seal assembly (item 4) from the pump head (item 5) being
careful not to damage the threaded area at the bottom of the bearing assembly. Discard the seal assembly
(never reuse the seal).
Step 1
Step 2 Step 3
Fig. 1