MAHLE NitroPRO NTF-515B, Руководство по эксплуатации

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16 | NTF-515B | Maintenance en
4. Maintenance
4.1 Maintenance interval
Description Action Frequency
Filter elements
(Water, oil, carbon)
Replace Yearly or when indicator on the filter
head moves to the CHANGE area as
shown in Fig. 11.
Automatic drain Clean When required.
Fig. 11: Filter life indicator
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Never perform any maintenance work which is not expressly
recommended in this section.
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Contact customer service if components have to be replaced
other than in the course of maintenance work.
4.2 Automatic water/oil drain
4.2.1 Checking functionality
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A periodic check of the automatic drains is necessary to en-
sure maximum membrane life.
To verify float is functioning correctly:
1. Open the filter bowl by turnign one-quarter turn counter-
clockwise.
2. Inspect inside of filter housing for water or oil.
3. If a float is not functioning, it may be submerged in water/oil.
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If a float is found to be inactive, follow the cleaning procedure.
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If necessary, a replacement drain is available for purchase.
MSS P/N 026 80386 00.
4.2.2 Cleaning automatic drain
Fig. 12: Automatic drain disassembly
1 Filter bowl
2 Float housing
3 Needle
4 Float seat
5 O-ring
6 Retention nut
To clean the automatic drains:
1. Turn the filter bowl (Fig. 12, Pos. 1) counter clockwise one-
eighth turn and pull the filter bowl down from the filter housing.
2. Unscrew the nut (Fig. 12, Pos. 6).
3. Remove the drain unit (Fig. 12, Pos. 2-5) from the filter bowl
(Fig. 12, Pos. 1).
4. Remove the o-ring (Fig. 12, Pos. 5).
5. Carefully pull the float housing (Fig. 12, Pos. 2) from the seat
(Fig. 12, Pos. 4). Do not bend the needle (Fig. 12, Pos. 3).
6. Clean the parts with soap and water. Make sure the needle
bore is open and clean.
7. Assemble the parts in the reverse order. Make sure the parts
are dry before reassembly.