Greenco 1RV0020, Руководство по эксплуатации

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11
If there is no experience available with regard to the oil life under the
prevailing operation conditions, it is recommended to have an oil analysis
carried out every 500 operating hours and establish the change interval
accordingly.
Oil and Oil Filter Change
Draining Used Oil
NOTE
: After switching off the vacuum pump at normal operating
temperature wait no more than 20 minutes to ensure the hot oil is drained.
 Make sure that the vacuum pump is shut down and locked against
inadvertent start up.
 Make sure that the vacuum pump is vented to atmospheric pressure.
 Put a drain tray underneath the oil drain port (95)
 Remove the oil drain plug (95), drain the oil
When the oil stream dwindles:
 Close the oil drain plug (95).

Switch the vacuum pump on for a few seconds.
 Make sure that the vacuum pump is shut down and locked against
inadvertent start up.
 Remove the oil drain plug (95) again to drain up the residual oil.
 Make sure that the sealing seat (96) on the oil drain plug (95) is
undamaged, if necessary replace the sealing seat.
 Firmly reinsert the oil drain plug (95) on the sealing seat (96).
 Dispose of the used oil in compliance with applicable regulations.
Flushing the vacuum pump
 Make sure that all the used oil is drained.
 Make sure that the used oil filter (100) is still in place.
 Create respectively 2 litres of flushing agent (0.45 litres for 1RV0020;
1L for 1RV0025 and 1RV0040) from 50 percent oil and 50 percent
paraffin or diesel fuel/fuel oil.
 Make sure that the oil drain plug (95) is reinserted correctly.
 Remove the oil fill plug (88).
 Fill in the flushing agent.
 Firmly reinsert the oil fill plug (88).
 Close the suction line.
 Run the vacuum pump for at least half an hour.
 Drain the flushing agent and dispose of it in compliance with
applicable regulations.
NOTE
: Due to the use of paraffin and even more in case of using Diesel
fuel/fuel oil, unpleasant odour can occur after recommissioning. If this is a
problem, Diesel fuel/fuel oil should be avoided and the vacuum pump be run
at idle in a suitable place until the unpleasant odour vanishes.
Cleaning of the float valve
(Applicable only to the the vacuum pump with float valve and oil return pipe)
Note:
Make sure the float valve (200) works normally, and the vacuum
pump generates limit pressure; the prevent the oil from spilling out from
discharge port (155).
 Make sure that the vacuum pump is shut down and locked against
inadvertent start up.
 Before removing the pipes, make sure the pipe is connected to open
air.
 When necessary, remove the exhaust pipe.
 Take off the exhaust cover (155
）
.
 Drain up the oil in the cavity of float valve with suction pipe or used oil
collector.
 Loosen the screws (341) and remove the fan cover (340).
Note:
When removing oil return pipe (195), a small amount of oil will be left
there; mop it off; be careful not to damage the sealing parts of joints.
 Remove the joints between oil return pipe (195) and oil separator (75);
slightly bend the oil return pipe.
 Unscrew the two screws on float valve (200); take out the float valve
from oil separator (75).
 Check if the float valve (200) is clean or damaged; if necessary, clean it
with compressed air.

Make sure the flanges of float valve (200) are installed with sealing rings
in good condition; if necessary, replace the sealing ring.
 Install the float valve (200) in the right position of oil separator (75), and
fix the float valve with two screws and locking washer.
 Connect the oil return pipe (195) and oil separator (75) with screws and
sealing washers.
 Tighten the screws (341) to secure the fan cover (340).
If the exhaust filter (120) needs no replacement:
 Make sure the sealing ring (141) of exhaust cover (155) is clean and
intact; if necessary, replace the sealing ring (141).
 Refit the exhaust cover (155) with sealing ring (141) with hex screws
(146); fasten the washers on the oil separator (75).
 When necessary, connect the exhaust pipe.
WARNING
Degraded oil can choke pipes and coolers.
Risk of damage to the vacuum pump due to insufficient
lubrication .
Risk of explosion due to overheating .
If there is a suspicion that deposits have gathered inside the
vacuum pump the vacuum pump shall be flushed.
WARNING
In case the vacuum pump conveyed gas that was contaminated
with harmful foreign material the oil will be contaminated with
harmful material.
Danger to health during the changing of contaminated oil.
Danger to the environment .
Personal protective equipment must be worn during the changing
of contaminated oil.
Contaminated oil is special waste and must be disposed of
separately in compliance with applicable regulations.