A533-23-880 Issue C
Page 98
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maintenance
6.9
Change the FDP pump oil
CAUTION
Ensure that the oil-level in the FDP pump is correct. If the pump oil-level is incorrect, pump performance may
be affected and the pump may be damaged.
1. Shut down the iF system (refer to Section 5.9) and allow it to cool.
2. Remove the right-hand side enclosure panel from the iF system, refer to Section 3.4.
3. Refer to Figure 1. Place a suitable container under the FDP pump and remove the drain plug (31).
4. Allow all the oil to drain from the FDP pump.
5. Dispose of the old 'O' ring on the drain plug (31) and replace it with a new 'O' ring.
6. Refit the drain plug (31).
7. Remove the FDP filler plug (8).
8. Fill the pump through the filler hole with the correct grade and quantity of oil. Allow the oil to drain into the
pump, then check the oil-level on the sight-glass, refer to
9. Dispose of the old ’O’ ring on the filler plug (8) and replace it with a new ’O’ ring.
10. Refit the filler plug (8).
11. Refit the right-hand side enclosure panel.
6.10
Change the HMB pump oil
Refer to the warnings and cautions in Section 6.7.
1. Shut down the iF system (refer to Section 5.9) and allow it to cool.
2. Remove the right-hand side enclosure panel from the iF system: refer to Section 3.4.
3. Refer to Figure 1. Remove the HMB oil filler-plug (2).
4. Use a suitable pump or syringe to suck the oil out of the pump.
5. Dispose of the old 'O' ring on the oil filler-plug (2) and replace it with a new 'O' ring (available as a spare: refer to
Section 8.3).
6. Fill the pump through the filler hole with the correct grade and quantity of oil. Allow the oil to drain into the
pump, then check the oil-level on the sight-glass: refer to Section 6.7.
WARNING
Do not remove the oil filler-plug while the pump is operating. If you do, hot oil may be ejected
from the pump.
WARNING
The majority of synthetic oils/greases can cause inflammation of the skin (dermatitis). Safety
precautions must be taken to prevent prolonged skin contact with these substances. Use of
suitable protective gloves and clothing along with respirator is recommended if contact with
substances is anticipated.
