© MAHLE
Product description | NTF-515B | 11
NTF-515B | 11
| 11
en
2.5.3 Nitrogen purity tester
The Nitrogen purity tester can be used to determine the percent
of nitrogen produced by the NTF-515B by connecting to the test
port on the right side of the unit. It can also be used to measure
the percent of nitrogen in the tires after performing a service.
t
Refer to the operation manual for the purity tester (035-81169-
00) for further details.
Fig. 7:
N
2
purity analyzer
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When using the purity tester to measure nitrogen purity in a
tire, you can minimze the pressure loss, and corresponding
refill requirements, by removing the tester from the valve stem
after a sample has been obtained. The reading continues to
climb after the tester has been removed - this is due to the
response time of the internal sensor. Once the rate of change
of the reading slows down or stabilizes, reapply the tester to
the valve stem to obtain another sample.
m
Always recheck the tire pressure when purity testing is com-
plete and replenish nitrogen as necessary.
2.5.4 Locking caster brakes
Rolling of the NTF-515B can be prevented by locking the caster
brakes (Fig. 1, Pos. 5) at the rear wheels.
2.5.5 Battery and battery charger
The NTF-515B is powered by a 12V, 7AH battery mounted inside
the cabinet. There is a battery charger connection port located
on the left hand side of the unit.
The NTF-515B is switched on by toggling the rocker switch to
the On position.
m
Do not leave NTF-515B unit powered on overnight as draining
the battery below 9V could cause damage to the battery cells.
Fig. 8:
Battery charger
2.5.6 Dually hose connection
The NTF-515B includes an additional connection port at the top
of the unit on the back (Fig. 2, Pos. 1). This port is utilized if the
Dually tire fill accessory kit is purchased and allows the filling of
6 tires simultaneously. MSS P/N 355 80123 00.
Fig. 9:
Dually hose connection kit
2.5.7 Single tire fill accessory connection port
The NTF-515B includes an extra connection port on the back of
the unit (Fig. 2, Pos. 3). Some technicians prefer to use a digital
tire fill gauge to top off a tire instead of allowing the unit to fill the
tire. Technicians can connect their own coiled hose and digital
tire fill gun to the unit if they own one. In the instance that one is
not available, MSS has P/N 355 80258 00 available for purchase.
