13
Standard Pump Operating Instructions and Parts Manual (OIPMS0611)
6. Remove the stator from the pump tube body by turning
clockwise (see Figure 7) .
7. Hold the drive shaft in a fixed position and loosen the rotor
(counterclockwise) located at the bottom of the drive shaft (see
Figure 8) .
8. Insert a small screwdriver (or similar object) through the
small hole on the shaft located inside the mechanical seal
inspection port (see Figure 9).
9. While holding the small shaft still, loosen
(counterclockwise) the pump drive shaft with large wrench.
(see Figure 9).
MECHANICAL SEAL REPLACEMENT/ PUMP ASSEMBLY
(SP-800SR & SP-800DD)
1. Follow steps 1-9 under the Disassembly / Cleaning
Procedures from above .
2. The mechanical seal will be exposed in the lower portion of
the mechanical seal bushing (see Figure 10).
3. Remove damaged seal and replace with a new mechanical
seal. Use a suitable lubricant on the seals O-rings.
Wear gloves when performing seal
maintenance. Touching the seal face
could cause premature failure.
4. Reinstall mechanical seal bushing into bearing housing.
5. Thread drive shaft onto bearing housing shaft (see Figure 9).
6. Thread rotor onto drive shaft (see Figure 8).
7. Thread stator can onto pump body (see Figure 7).
8 . Apply a suitable lubricant on rotor .
9. Once Bearing Housing, drive shaft, and rotor are securely
threaded together, insert this assembly into the pump body
(see Figure 6, page 12) .
10. Tighten the Hex Nut on the pump body to the Bearing
housing. Use screwdriver (or similarly shaped object) in the
mechanical seal inspection port (see Figure 5, page 12).
11. Use a large wrench to tighten the Hex Nut while
simultaneously holding the screwdriver in the seal
inspection port (see Figure 5, page 12) .
12. Replace set screw into hex nut.
13. Reattach motor and resume operation. (SP-800SR: see
Figure 3, page 12); (SP-800DD: see Figure 4, page 12) .
Figure 7
Stator
Outer Tube
Assembly
Figure 8
Drive Shaft
Assembly
Rotor
Figure 9
Drive Shaft
Assembly
Note:
Slide the TFE stator into the stator tube. Make sure the pin on the
stator tube lines up with the notch on the TFE stator insert.
Figure 10
O-Ring
Seal
Seal
O-Ring
Washer
Spring
Mechanical Seal Bushing
Mechanical Seal
TFE Series Only
Notch On
TFE Stator
Stator Tube Top View
Pin On Inside Stator Tube
Stator Tube with
TFE Stator Inserted
Inside
Stainless Steel
O-Ring Seats into
Top of Stator Tube