Flow 94i-D, Руководство пользователя

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Checking the hydraulic oil
Check the hydraulic oil:
•
after a specific number of operating hours
•
at the end of a specific time period
•
if the oil becomes contaminated
•
when you replace the hydraulic pump.
Refer to MS-2258 for recommended service intervals.
Service steps
1. Open the drain valve on the bottom of the tank.
Drain the oil into a clear beaker until you see pure
oil, then close the drain valve. Place the beaker
on a level surface and let the oil settle for at least
10 minutes.
2. Check the beaker. If the beaker only contains oil,
you do not have a condensation problem. If you see
hydraulic oil floating on a layer of water, the reser-
voir contains condensation from air drawn into it as
the oil cools.
•
If there is more than 200 ml of water in the
beaker, drain the water from the reservoir at
least every 2 to 3 weeks to keep the monthly
condensation level less than 200 ml. See
Changing the hydraulic oil.
•
If the oil looks milky, there could be an exces-
sive amount of water in the oil. Make sure the
oil filler cap is in place. Check the heat
exchanger for leaks. Fix any problems and
change the oil before operating the pump.
•
If the oil has a burned color or smell, or if
there is debris in the oil sample, additional ser-
vice work is required. See
Servicing the hydrau-
lic pump for more information.
48 | M-390
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HYPERJET™ 94i-S AND 94i-D PUMPS