Vetus HT1015 Instructions D'installation page 5

1 Introduction
The hydraulic pump maintains the oil flow in a hydraulic sys-
tem.
All Vetus hydraulic systems are fitted with an automatic plunger
pump which works on the constant pressure system. The pump
will always aim for a balance between flow and maximum work-
ing pressure.
When no oil flow is requested the pump does not provide any
oil. The pump then rotates without using any power. This does
not cause any wear.
The hydraulic pump may be fitted on to the main or auxiliary
engine, or on to the gearbox.
Schematic diagram of pump:
Sensing
Line
LS
HTM0039
POWER HYDRAULICS Hydraulic pumps
P
Pump Output
L
Z
2 Installation
2.1 General pointers
- Always work with clean tools and in clean surroundings. Dirt
and moisture are the biggest enemies of hydraulic systems.
- There are 2 sorts of connections within hydraulic systems:
a) thread connection with O-ring
Never use a locking or sealing agent!
b) thread connection without O-ring (for example BSP and
NPT thread)
Always use a locking or sealing agent; this is ideally suited
for hydraulic connections! Always clean the connections
thoroughly making sure they are grease free.
- Check that all connections are tight after installation.
2.2 Pump
HT1015 / HT1016 / HT1017:
Fit the pump on the PTO 1) of the main or auxiliary engine or on
the PTO 1) of the gearbox.
HT1022:
Fit the pump in front of the engine in combination with a flexible
coupling.
2.3 Hoses
Consult the manual 'Hydraulic installation' for information about
fitting the hoses.
ENGLISH
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