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4.5. CLEANING THE FILTERS
• Power take-off stopped, place (fi gure 19, page 21):
- The valve (A) on function
.
- The valve (B) on function
.
- The valve (C) on function
.
- The valve (D) on function .
• Open and clean the fi lters (position a bucket to
recover the residues).
SUCTION FILTER (fi gure 32)
• Before opening the suction fi lter (2), drain the
cartridge by unscrewing the yellow cap (3).
• To clean the fi lter:
- Undo the nut (1).
- Remove the cap (3).
- Push the fi lter down and clean it.
• If a leak appears on the lid after putting the fi lter
back, tighten the nut (1) slightly.
DELIVERY FILTER (fi gure 33)
• Before opening the delivery fi lter (4), drain the
cartridge by opening the tap (6) (recover the
residues in a bucket).
• To clean the fi lter:
- Undo the fi lter body (5).
- Push the fi lter down and clean it.
• If a leak appears on the lid after putting the fi lter
back, tighten the body (5) slightly.
4.6. PUMP MAINTENANCE
PUMP APS 61
• Check oil level every 50 hours.
• Drain the pump every 200 hours.
• Check pump valves (fi gure 34):
- Unscrew the screws (7).
- Remove all the valves and check status:
▪ 1. Sticking of valve on its seat - free and then
oil.
▪
2. If presence of foreign matters, remove them.
▪ 3. Deterioration of valve, valve seat or cage:
replace the defective component.
The inspection operation and the replacement of
diaphragms should only be performed by qualifi ed
personnel (see your BERTHOUD dealer).
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