Hydraulic System; Pump; Priming Pump - Chappee TIGRA 2 CF 910 Installation, Use And Maintenance Instructions

2.6

Hydraulic system

2.6.1

Pump

The pump requires periodic maintenance carried
out by a qualified and authorised technician in
conformity with legislation and local standards.
Maintenance is essential for the reliability of the
WARNING
pump, avoiding the excessive consumption of fuel
and consequent pollution.
The pump is designed to allow working with one pipe.
In order to obtain two pipes working it is necessary to unscrew the
return plug 2) (Fig. 10), screw the by-pass screw 3) and then
screw again the plug 2).
The suction plug 1) is made of plastic. Once
removed, it must not be used again.
In single-pipe installations, the plug in the re-
WARNING
turn line 2) must be totally in steel.
In the two pipes systems, before starting the burner make sure
that the return pipe-line is not clogged.
An excessive back pressure would cause the damage of the
pump seal.
8
1
D9630
Suction line
1
Return line
2
By-pass screw
3
Gauge connection
4
Check periodically the flexible pipes conditions.
Using kerosene, they have to be replaced at le-
ast every 2 years.
It is necessary to install a filter on the fuel supply
WARNING
line.
Installation
7
6
5
4
3
2
Fig. 10
Pressure adjuster
5
Suction gauge connection
6
Valve
7
Auxiliary pressure test
8
point
2.6.2

Priming pump

Before starting the burner, make sure that the tank
return line is not clogged.
Obstructions in the line could cause the sealing
WARNING
organ located on the pump shaft to break.
On the system in Fig. 11 it is sufficient to loosen the suction gau-
ge connection 6) (Fig. 10) and wait until oil flows out.
D5741
On the systems in Fig. 12 and Fig. 13 start the burner and wait
for the priming. Should lock-out occur prior to the arrival of the
fuel, await at least 20 seconds before repeating the operation.
The pump suction should not exceed a maximum of 0,4 bar (30
cm Hg). Beyond this limit gas is released from the oil.
Oil pipes must be completely tight.
D1842
7
GB
L meters
H
I. D. I. D.
meters
8 mm 10 mm
0.5 10 20
1 20 40
1.5 40 80
2 60 100
Fig. 11
L meters
H1
I. D. I. D.
meters
8 mm 10 mm
0 35 100
0.5 30 100
1 25 100
1.5 20 90
2 15 70
3 8 30
3.5 6 20
Fig. 12
20018260