ALUP Kompressoren SCK 21, Maintenance And Operating Instructions

10

Suction filter SCK 21-42

Oil filter

Maintenance

6.3 V-belt drive

Our constructions keeps the V-belts (03) at the required tension;
nevertheless they must be checked every 500 hours and retensioned if
necessary.

Place the test pin (

p

 Order No. 180.02030) at right-angles to a V-belt

(03) in the middle of the section between the rollers and press it down.

Deflection at 50 N testing force:

SCK 21 - 31 = 11 - 9 mm

SCK 42, 52 =

8 mm

If you have to replace one V-belt, you must replace all the V-belts (03)
at the same time. To do this release the motor rocker arm upwards
using the adjustment screws. Place the new V-belts (03) individually
around the V-belt pulleys (02) and lower the motor rocker arm using
the adjustment screws until the test force is achieved. Then lock the
adjustment screws again.

6.4.1 Replacement of the suction filter (05) SCK 21-42

Warning   11 - with flashing red lamp. Replace the suction filter (05),
confirm the maintenance with Code 21 and reset with the 

O

 key.

The used suction filter is to be disposed of as special waste.

6.4.2 Replacement of the suction filter (05) SCK 52

Warning   11 - with flashing red lamp. Loosen the filter cap with the
butterfly nut. Replace the suction filter (05) and secure the filter cap
with the butterfly nut again. Confirm the maintenance with Code  21
and reset with the 

O

 key.

The used suction filter is to be disposed of as special waste.

manually tighten it half a turn. Check for leakage at operating
temperature, confirm the main-tenance with Code 21 and reset with
the 

O

 key.

The used oil separator is to be disposed of as special waste.

6.7 Condensate water

When the full capacity of the compressor is not utilized, condensate
water may deposit at the lowest point (heavier than oil) of the oil
tank (11).

This condensate water should be drained through the oil drain (11.2)
regularly, when the compressor is at standstill for a longer period,
e.g. at the weekend (ref. sect. 3.4).

If any condensate water is observed, please contact immediately the
after-sales service 

p

, otherwise your warranty might be endangered.

6.5 Replacement of the oil

filter (15)

Warning   12 - with flashing red lamp.
Loosen the oil filter (15) with a strap
wrench (

p

 order n° 180.06075) and

remove it. Remove residues of the old
sealing from the housing. Lubricate the seal of the new oil filter. Screw
in the new oil filter (15) up to the limit stop and manually tighten it
half a turn. Check for leakage at operating temperature, confirm the
maintenance with Code 21 and reset with the 

O

 key.

The used oil filter is to be disposed of as special waste.

6.6 Replacement of the oil

separator (08)

Warning   13 - with flashing red lamp.
Loosen the oil separator (08) with a strap
wrench (

p

 order n° 180.06075) and

remove it. Remove the residues of the
old sealing and lubricate the seal of the
new oil separator. Screw in the new oil
separator (08) up to the limit stop and

Oil
separator

6.8 Oil level check (mind residual pressure when

opening)

Check the oil level at the oil filler neck (11.1) and refill oil, if necessary.
Different kinds of oil must not be mixed. Works oil filling: 

SPECIAL OIL.

6.9 Oil change

always together wiht the oil filter (15)

Warning 

 15 - with flashing red lamp. The oil is to be changed in

accordance with the maintenance intervals on page 13 with the
required oil quantity.  In case other lubricants shall be used, please
contact the after-sales service 

p

. We only grant our warranty for the

compressors when the use of equivalent lubricants is verified.

Oil change:

 (only in warm condition) open the filler neck (11.1) as

well as the oil drain (11.2) and drain the used oil. Close the oil drain
(11.2) and fill in fresh oil up to the lower edge of the filler neck (11.1).
Check for leakage at operating temperature. Confirm the maintenance
with Code 21 and reset with the 

O

 key.

The used oil is to be disposed of as special waste.

Oil filler

05

05

15

Suction filter SCK 52

08

11.2

Condensate and
oil drain

11.1

11.2

6.10 Motor bearings (01)

Warning 

 14 - with flashing red lamp. Regreasing of the electric

motor (01) must strictly be carried out and is performed by means of
a grease gun with a lubrication nipple according to DIN 3404 (order
n° 180.06076 

p

). If the electric motor (01) does not have any grease

nipples, it is equipped with long-life grease closed roller bearings.
After their lifetime these bearings are to be changed completely.