Pfs maintenance – Finish Thompson PFS ATEX VERSION (INCLUDES M6A, M6XA, M10X MOTORS & SPK) User Manual

Page 8

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Ground wire attachment to motors:

Electric Explosion Proof:

1. Screw #10-32 plated nut onto exposed machine screw in motor housing.
2. Attach #10 ring terminal from the end of the ground wire assembly to exposed machine screw in motor

housing using #10-32 plated nut and #10 lock washer.

Air Motor:
1. Remove one of the Allen head set screws from the motor mount.
2. Slide the ¼-20 x 5/8” long round head machine screw through the 1/4” ring terminal on ground wire
assembly.
3. Thread ¼-20 plated nut onto the screw.
4. Insert the screw into the hole on the motor mount and tighten (do not over tighten).
5. Using a 7/16” wrench, tighten the ¼-20 nut against the ring terminal.

Drum Pump Installation
1. Install the pump and Static Protection Kit as described and shown in Figure 2.
2. Connect the ground wire assembly to an earth ground using the supplied clamp.
3. Connect the ground wire between the drum and the earth ground.
4. Connect the ground wire between the receiving container and earth ground (or use a bonding wire to
con nect to the drum).
5. Check electrical continuity of all components before pumping. All should be one (1) Ohm or less.
6. Avoid splashing when operating the pump. Splash filling can create static electricity.

PFS 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 11) 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.

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