© MAHLE
Maintenance | NTF-515B | 17
NTF-515B | 17
| 17
en
4.3
Filter element maintenance
m
The condition of the filter element (mounted on rear of unit)
can only be checked when shop air is connected to the unit
and it is filling the tank with nitrogen. It may be necessary to
relieve some tank pressure to cause the tank to fall below the
set pressure and cause the tank to begin filling.
m
The filter elements must be chaged when the indicator moves
into the CHANGE area and at least once annually to protect
the membrane warranty.
Fig. 13: Filter disassembly
1 Filter housing
2 Sieve
3 Filter element
4 Knob
5 Filter bowl
6 Bleeder screw
To replace filter element:
1.
Disconnect the air supply.
2.
Allow system to depressurize (air pressure gauge should read
0 PSI).
3.
Unscrew the bleed screw (Fig. 13, Pos. 6) slowly to ensure
that the filter is depressurized.
4.
Turn the filter bowl (Fig. 13, Pos. 5) one-eighth of a turn
counter-clockwise and pull the filter bowl down from the filter
housing (Fig. 13, Pos. 1).
5.
Unscrew the blue knob (Fig. 13, Pos. 4).
6.
Remove the old filter element (Fig. 13, Pos. 3).
7.
Clean the sieve (Fig. 13, Pos. 2), filter bowl, and the filter
housing, if necessary.
8.
Install the new filter element.
9.
Assemble the parts in the reverse order.
4.4
Troubleshooting
Problem
Possible Cause
Solution
Display does not light Dead battery
Recharge battery
Inflation process
starts, but does not
complete
Low supply pressure or
leaks exist
Check supply pressure
and confirm no leaks are
detected
Air chucks will not
seal to the tire valve
stem(s)
Air chucks work or not
completely pushed on
tire(s)
Make sure air chucks are
pushed on tires or re-
place air chucks
Air chucks leak while
not connected to
tires
Air chucks worn
Replace air chucks
E4 on display
Over inflation due to
blocked hose
Remove blockage or re-
place hose
E6/E16 on display
Unit powered ON while
connected to tires
Remove hoses from tires
and turn power OFF/ON
again
E5/E8/E9 on display PCB or sensor error
Contact MSS support
E10 on display
Low battery charge
Charge battery for at
least 5 hours
E11/E12 on display
PCB fault
Contact MSS support
Содержание NitroPRO NTF-515B
Страница 1: ...MAHLE NTF 515B EN Operation Manual Nitrogen Tire Filling Unit...
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