UNM / CPM
II/9
GB
direction. The screw it open by 1/2 to 1
turn (Figure 3a).
2. During air extraction, oil deposits in the
form of droplets can be seen at the upper
sight glass. Dosing: 1 droplet oil at 300
– 600 l/min air consumption. Readjust If
necessary and check regularly.
2.5 Operation
L
Do not overload the compressor: do not
exceed the max. number of switching cy-
cles and the ratio of operating time to
standstill!
2.5.1 Insert
Switch on the compressor at the ON/OFF
switch (item 10). The compressor starts up
and switches off automatically at maximum
pressure.
2.5.2 Adjusting the working pressure
1. Pull up the adjustment button on the (fil-
ter) pressure reducer (Figure 4a).
2. Rotate clockwise = pressure is in-
creased. Rotate anticlockwise = pressure
is reduced.
3. Read the set working pressure on the
pressure gauge (item 13).
4. Press the adjustment button down to
lock it in place.
2.5.3 After use
1. Switch off the compressor.
2. Disconnect the power supply.
3. Disconnect plug nipple of air hose from
(safety) quick-action coupling (Fig. 3a) .
4. Clean compressor (Chap. 2.6.2), depres-
surise it (Chap. 2.6.1), transport to stor-
age location (Chap. 2.4.1).
2.6 Maintenance
2.6.1 Before each maintenance task
1. Swtich on the compressor at the ON/OFF
switch (item 10). Disconnect the power
supply.
2. Depressurise the compressor: using the
blow gun, blow out all pressure from the
vessel.
L
Only drain oil if the unit has been suffi-
ciently cooled.
2.6.2 Cleaning the compressor
• Clean the cooling fins on the cylinder, cyl-
inder head and aftercooler using com-
pressed air.
• Clean the fan impeller cover on the motor.
2.6.3 Clean FDM insert
1. Depressurise vessel of FDM.
2. Hold a suitable vessel under the conden-
sate drain. Drain condensate.
Interval / No later than Tasks
See chap.
-- / As needed
Clean compressor
2.6.2
Clean filter insert (FDM)
2.6.3
-- / after each use
Drain condensate from pressure vessel
2.6.5
Drain condensate from FDM
2.6.4
daily / commissioning
Check the oil level, add oil if necessary.
2.6.6
Once after 10 h / --
Check screw connections
2.6.8
-- / Weekly
Check intake filter
2.6.9
50 h / After 6 months
Check V-belt tension (where applicable)
2.6.10
Clean intake filter
2.6.9
Change oil (1st oil change mineral or synthetic oil) 2.6.7
500 h / after 1 year
Change oil (with mineral oil)
2.6.7
Change intake filter
2.6.9
Change check valve and insert
2.6.11
Check screw connections
2.6.8
1,000 h / after 2 years
Change oil (with synthetic oil)
2.6.7
Change V-belts (where applicable)
2.6.10
2,500 h / After 5 years
Change safety valve
2.6.12
Summary of Contents for CPM 310-10-20 W
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