Maintenance
INOXPA S.A.U.
20.003.30.02EN · (A) 2021/12
17
8.6. DISASSEMBLY AND ASSEMBLY OF THE AGITATOR
The disassembly and assembly of the agitators should only be carried out by qualified personnel
using only appropriate tools. Ensure that staff read these instructions manual attentively,
particularly the instructions that relate to their work.
Stop the motor from starting up when carrying out assembly and disassembly work on the agitator.
Place the agitator switch in the “off” position.
Lock out the electrical switchboard or place a warning sign.
Remove the fuses and take them to the workplace.
8.6.1. Disassembly of the agitator
Once the motor has been disconnected, disassembly work of the agitator may begin:
- Agitator with bearing support with one ball bearing:
•
Take the agitator out of the tank
•
Remove the marine propeller (02) from the agitator shaft (05),
unscrewing the allen studs (55).
•
Remove the agitator shaft (05) from the half-shaft (26) through the allen
studs (55A).
•
Remove the hexagonal screws (52) and flat washers (53) and take out
the motor (93).
•
Remove the countersunk screws (50). Hit the upper part of the half-shaft
(26) with a nylon hammer and take out the unit formed by the half-shaft
(26), ball bearing (70), base plate (42), lip seal (88) and bearing stop ring
(31).
•
Once in the outside of the bearings support, remove the base plate (42)
from the half-shaft (26) and with the aid of a nylon hammer remove the
lip seal (88).
•
Take off the elastic ring (66) with a suitable pliers and remove the ball
bearing (70) with a press. See figure 8.1
- Agitator with bearing support with two ball bearing:
•
On the sawtooth propeller (02), remove the hexagonal screw (52A).
Once extracted it, leave the propeller bucket (02A) with the dragging
pivots (02C), the sawtooth propeller (02) and the washer (02B).
•
Remove the hexagonal screws (52) and flat washers (53), and take out
the motor (93).
•
Remove the countersunk screws (50). Hit the upper part of the agitator
shaft (05) with nylon hammer and take out the unit formed by the agitator
shaft (05), ball bearings (70, 70A), base plate (42), lip seal (88) and
bearing stop ring (31).
•
Once in the outside of the bearings support, remove the base plate (42)
from the agitator shaft (05) and with the aid of a nylon hammer remove
the lip seal (88).
•
Take off the elastic ring (66) of the upper ball bearing with suitable pliers
and remove the upper ball bearing (70A) with a press. Then, remove the
other elastic rings (66) and proceed to disassembly the bottom ball
bearing (70) with a press. See figure 8.1.
2
0
.0
0
3
.3
2
.0
0
0
5
Figure 8.1