Unigas HR93A, Руководство по установке, использованию и обслуживанию

Страница: 21 / 52

C.I.B. UNIGAS - M039213CB
21
line to bleed). To avoid damages inject some lubrication oil into the vacuum inlet.

Care must be taken when installing the pump not to force the pump shaft along its axis or laterally to avoid excessive wear on the
joint, noise and overloading the gears.

Pipes should not contain air pockets. Rapid attachment joint should therefore be avoided and threaded or mechanical seal jun-
ctions preferred. Junction threads, elbow joints and couplings should be sealed with removable sg component. The number of jun-
ctions should be kept to a minimum as they are a possible source of leakage.

Do not use PTFE tape on the suction and return line pipes to avoid the possibility that particles enter circulation. These could depo-
sit on the pump filter or the nozzle, reducing efficiency. Always use O-Rings or mechanical seal (copper or aluminium gaskets) jun-
ctions if possible.

An external filter should always be installed in the suction line upstream of the fuel unit.
Light oil pumps
1 Inlet G1/2
2 To the nozzle G1/2
3 Return G1/2
4 Pressure gauge port G1/4
5 Vacuum gauge port G1/4
6 Pressure governor
"Note: pump with “C” rotation.
Suntec TA..
Oil viscosity 3 ÷ 75 cSt
Oil temperature 0 ÷ 150°C
Min. suction pressure - 0.45 bar to avoid gasing
Max. suction pressure 5 bar
Max. return pressure 5 bar
Rotation speed 3600 rpm max.
Suntec T..
Viscosity 3 - 75 cSt
Oil temperature 0 - 150 °C
Minimum suction pressure - 0.45 bar to prevent gasing
Maximum suction pressure 5 bar
Rated speed 3600 rpm max.
Key
1 Inlet G3/4
2 Pressure gauge port G1/4
3 Vacuum gauge port to measure the inlet vacuum G1/4
4 To pressure adjusting valve G3/4
Pressure regulator valve Suntec TV
Pressure regulation
Remove cap-nut 1 and the gasket 2, unscrew the lock nut 4. To increase pressure,
turn adjusting screw 3 clockwise.
To decrease the pressure, turn screw anticlockwise. Tight the lock nut 4, refit the
gasket 2 and the cap nut 1.
Key
1 Cap nut
2 Gasket
3 Adjusting screw
4 Lock nut
5 Gasket