Maintenance; Maintenance Schedule; Maintenance Subjects; Removing The Guards For Maintenance - Multifan Mobile Fan Betriebsanleitung

Mobile Fan
2. Plug in the fan
3. Start the fan by selecting one of the three speed settings.
After use
1. Stop the fan by selecting 0 / OFF.
2. Unplug the fan.
Repositioning the fan
The fan must be stopped and unplugged before repositioning.
Changing the tilt angle
The fan must be stopped and unplugged before changing the tilt angle.
6

Maintenance

DANGER
Switch off and completely isolate the fan from the electrical
supply before commencing maintenance.
WARNING
All moving parts must be at a complete standstill before com-
mencing maintenance.
6.1

Maintenance schedule

► Maintenance tasks – TO BE CARRIED OUT EVERY MONTH
1. Examine the fan housing for defects and remove any dirt that has accu-
mulated.
2. Examine the motor and remove any dirt that has accumulated on the
motor and between the motor cooling fins.
3. Examine the impeller for defects and remove any dirt that has accumu-
lated.
4. Examine the condition of the guards (if fitted) and remove any dirt that
has accumulated.
5. Check the power cable for signs of physical damage
► Maintenance tasks – TO BE CARRIED OUT EVERY 3 MONTHS
1. Check the condition of the bearings.
2. Check the tightness of fasteners and fixings.
► Maintenance tasks – TO BE CARRIED OUT ANNUALLY
1. Only for 1~ fan motors: check the capacitor capacitance.
6.2

Maintenance subjects

Cleaning
In areas of application where high levels of contamination are present,
cleaning intervals should be adjusted accordingly.
Cleaning is preferably done using a soft brush. Do not use any aggressive
detergents, solvents or chemicals for cleaning.
Wet cleaning
Wet cleaning is allowed using low pressure clean water spray. Avoid directing
water jets at bearings and electrical connections as much as possible.
When wet cleaning is planned, close any open condensate drain holes before
commencing wet cleaning.
INS00014-D Original instructions
WARNING
Do not use a high pressure cleaner.
Water may penetrate electrical connections and bearings.
► After wet cleaning
1. Open the condensate drain hole at the lowest point of the fan motor.
2. Run the fan for 2 hours at full speed to remove any moisture that may
have entered the fan motor.
Bearings
The bearings used in the fan and/or fan motor are maintenance free and
greased for life. Average lifespan during normal operation is >30.000 hours.
Defects in the bearings can usually be detected by listening. When the shaft /
impeller is rotated by hand, it should move freely with a smooth uniform
sound. Squeaking or grinding noises indicate the bearings may require
replacement.
Impeller
Cleaning the impeller is very important. A dirty impeller will suffer from
imbalance resulting in vibrations. A dirty impeller will also result in reduced fan
performance and reduced fan efficiency.
Capacitor (1~ fan motor)
Capacitor capacitance decreases slowly over time. Average lifespan is ±
30.000 hours. Replace the capacitor when the capacitance has dropped
below the value as listed on the capacitor.
6.3

Removing the guards for maintenance

For 40cm / 18'' models
1. Loosen the screws that hold the guard in place. Do not remove the
screws completely!
2. Remove the guard
For 50cm / 20'' models
1. Loosen the screw that holds the plastic clip in place. Do not remove the
screw completely!
2. Slide the clip outward.
3. Remove the guard
ENGLISH | 7