Nilfisk-ALTO MC 3C, Service Manual

Page: 65 / 71

G
SM MC 3C_ MC 4M Ver.1.0_March 2015
Adjustment / Test
65
Adjustment of the retaining pressure
Check of retaining pressure Adjustment of retaining pressure MC 3C
1. Install test pressure gauge 1206358
between machine outlet and the high
pressure hose.
2. Open the valve on the test gauge
completely
3. Start machine and run with full pressure.
4. Close the gun, and read the retaining
pressure on the test gauge.
5. The correct retaining pressure is shown
in the data sheets in section ”B” in this
manual.
NOTE: Retaining pressure is the pressure
the pump reaches when the motor
stops.
1. The retaining pressure is adjusted on the
2. unloader.
3.
Use a 3 mm Allen Key and a 10 mm
open ring spanner.
4. Loosen the counter nut with the 10 mm
open ring spanner.
5. Turn the Allen Key clockwise to increase,
and counterclockwise to decrease the
retaining pressure.
6. The correct retaining pressure is shown
in the data sheets in section ”B” in this
manual.
Adjustment of retaining pressure MC 4M