© LNS FOX Instruction manual series WS (USA) pag. 23 of 28 - rev. 06-2014
•
Loosen screws securing motor’s wires located on the on/off switch or on the thermal switch
•
Loosen motor’s cable gland (positioned on the control panel)
•
Pull out power supply cable from the control panel box and from the hole of the main filter support flange
•
Unscrew 4 nuts and remove the motor
Reassembly
•
Reinsert power supply cable through hole on the main filter up to the control panel box
•
Secure with the bolts the motor to the structure.
•
Tight the cable gland on the box and verify correct positioning of the gland on the filter support flange
•
Slide in terminals and tight (at 2 Nm) fixing screws on the thermal switch or on the switch
•
Reposition the cover and tight the 4 screws
“Personal safety – integrity of the unit”
Before restarting the unit verify that all screws are properly tight and that inside the
impeller case there are no objects (tools, nuts and rugs) Nuts and bolts can only be
reused if in perfect conditions. Otherwise replace them with new ones identical to the
originals.
20 a) Remove control panel box
b) disconnect wires from thermal
switch junction
c) remove electric cable from the box
d) remove cable from filter’s flange
e) unscrew nuts and bolts
f) replacement of the motor
6.4. Torque settings
WS 170
WS 330
WS 700
WS 1020
WS 1250
Impeller screw
4 Nm
5 Nm
10 Nm
22 Nm
22 Nm
Nuts securing the motor
22 Nm
22 Nm
22 Nm
35 Nm
35Nm
Nuts securing impeller case
20 Nm
20 Nm
20 Nm
20 Nm
20 Nm
Screws securing electrical terminals
2 Nm
2 Nm
2 Nm
2 Nm
2 Nm
6.5. Periodic checks
“Personal safety – integrity of the unit”
Period checks must be performed in accordance to the following maintenance table in
order to avoid potential damages to people or to the unit
Every 5000 hrs the following checks must be performed:
•
Integrity of electrical boxes
•
Verify continuity of protective bonding circuit
•
Integrity of structural parts relative to the motor support plate
•
Tighten of nuts securing the motor
•
Tighten screw securing impeller
•
Integrity and efficiency of gas charged springs