Wanner Engineering, Inc.
18
United States Instant Information: www.vectorpump.com
(612) 332-5681 Fax (612) 332-6937 VEC-991-4000B
Vector 4000 Maintenance
6.4.2 REPLACEMENT OF THE SEAL RING (27) AND THE
SHAFT SEAL (26)
Note: The numbers in parentheses are Reference Numbers
located in the Parts List exploded views of this manual.
Wanner hose pumps are equipped with a leakage channel to
observe wear of the seal ring or the shaft seal. This channel is
at the back of the pump casing underneath the gearbox flange.
It also protects the gearbox seals by leaving the lubricant or
the material to pass freely at the back of the pump casing. See
Figure 12, Figure 13, and Figure 14.
PUMPS 4006, 4007, 4009, 4010
1. Isolate the pump from the power supply.
2. Empty the lubricant and clean out the pump. See 6.1.
3. Remove the pump hose. See 6.3.1.
4. Disassemble the pump cover and remove the cover
seal (10).
5. Disassemble the wheel by unscrewing the hub (19).
6. Remove the wheel of the pump shaft with a suitable lifting
equipment.
7. Support the gear motor with a suitable lifting equipment.
8. Unscrew nuts (41), washers (72) and remove gearbox from
pump casing.
9. Cut out and remove seal sleeve (27) if damaged.
10. Slip on spacer ring (73) if used and glue to the
shaft.
Note: Contact Factory before performing step 11!
11. Position new seal ring (27) against spacer ring or
the gearbox shaft’s shoulder. Fill the key groove with
silicone mastic to ensure correct sealing.
12. Remove the shaft seal (26) with a drift punch.
13. Replace with new shaft seal using a suitable tool
(wooden or plastic cylinder). Check the mounting
position of the seal (opened side turned to the cover).
72
41
LEAKAGE
CHANNEL
Figure 12
Figure 13
26
Cylinder Tool
27
