Tabla de contenido
Idiomas disponibles
Idiomas disponibles
–
If the pump and motor is easy to rotate the pump does not require internal cleaning.
NOTE!
Never dismantle the pump. Special equipment and knowledge are absolutely necessary
for re-assembling the pump. Assembling the pump without this equipment results in severe
damage to the pump at next start up.
9.6
Discharge silencer
Check the large silencer underneath the pump and motor for cracks every 500 hours of operation.
Replace the silencer if any cracks are found.
9.7
Thermal fuse
Never run the unit without a functioning thermal fuse installed. Contact your local Nederman
representative in order to eradicate the cause and take necessary action if the thermal fuse trips.
The fuse must only be replaced when the cause for overheating has been found.
9.8
Inlet safety grating
The safety grating in the inlet silencer may clog if the dust collection is poor, or the vacuum unit
is located in a very dusty area. Perform the following inlet safety grating inspection every 500
hours of operation:
1.
Turn off the unit
2.
Remove the lid
3.
Inspect the safety grating for clog, see Figure 1 item 17.
4.
Refit the lid.
9.9
Motor bearings
The recommended intervals for replacing permanent bearings or re-greasing the grease nipple
can be found on the motor data label or motor manual.
The operating time before service depends on size, environmental and operating conditions. As
following values are guidelines at normal operation:
•
Replace permanent bearings before 15,000 hours of operation.
•
Re-grease the bearings at least every 4,000 hours of operation.
9.10
Start-up and vacuum limiting valve
Figure 1 item 14 shows the vacuum limiting rubber coated valve disc. Only replace the valve disc
if damaged. The circular 'ridge' must face the compressed air cylinder.
Perform the following start-up and vacuum limiting valve inspection every 500 hours of
operation:
1.
Start the unit.
2.
Place your hand on the motor cooling air outlet, Figure 3 item 16.
3.
The valve works correctly when:
–
Air is sucked into the motor cooling air outlet during Y mode.
–
Hot air is blown out from motor cooling air outlet during D mode.
All manuals and user guides at all-guides.com
RBU
EN
21
Tabla de contenido
