um DSR SM 125 User Manual

- (1) Crankshaft breather.
- (2) To the gearbox.
- (3) To the gearbox.
- (4) To the filter, lubrication of technical part.
N.B.
THE OIL PUMP IS A DOUBLE ROTOR PUMP THAT
PUMPS SEPARATELY.
ATTENTION
DO NOT DAMAGE THE CRANKCASE COVER SURFACES, AS THIS WILL LEAD TO OIL LEAKAGES.
1 4
3
2
- The lubrication is the semi-wet crankcase type.
- The gearbox is used as an oil tank.
- The pump is driven by the clutch and fitted with two rotors made of sintered material:
- One 13mm thick rotor, for oil suction.
- One 8.5 mm thick rotor, for pumping.
- The maximum pressure is 4.2 bars, and at the top of the engine the pressure is 1 bar.
- The circuit consists of a pre-filter, filter, pressure overload by-pass valve and oil pressure sensor.
- The suction is from:
- The front of the crankcase (crankshaft housing).
- The rear of the crankcase (gearbox).
- Pumping is:
- To the oil filter (classic circuit).
- To the gearbox.
21
LUBRICATION CIRCUIT
WORKSHOP MANUAL

um DSR SM 125 Specifications

General

Brand	um
Model	DSR SM 125
Category	Engine
Language	English