Tritech Merlin, Руководство по эксплуатации продукта

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Installation Merlin
0711-SOM-00001, Issue: 03 11 © Tritech International Ltd.
The drain connection from the motor back to the tank is required to be a minimum of ⅜
inch bore. The drain line should return straight to the tank without restriction. It is possible to
connect the drain line back to a larger bore drain manifold, which has been correctly sized
to accommodate all drains attached to it.
Warning
The drain line should not be connected to any return flow lines.
Warning
Self-sealing quick disconnect connectors should not be used on the drain line.
Such connectors, if incorrectly fitted, may result in pressurisation of the motor
casing which could fail explosively under pressure resulting in significant risk of
personal injury.
Required Hydraulic Flow
For the Volvo F11-19 motor the vehicle hydraulic system should be capable of supplying a
flow rates and pressure detailed in Chapter 2, Specification .
Achieving the required flow in an unloaded condition is no guarantee that the supply can
actually be met in working conditions.
It is recommended that the installation be checked using a hydraulic flow meter equipped
with a loading valve which can simulate the motor running under load.
In order to avoid pressure losses a minimum of ½ inch bore pipes or hoses are used on the
flow and return lines (¾ inch or larger is recommended).
Warning
Under no circumstances should the flow be allowed to exceed the 25 litres per
minute (while testing in air).
Exceeding this pressure when operating in air (when there is no back-pressure
on the pump) may cause a catastrophic failure of the pump and result in personal
injury.
3.4. Retro Flush Valve and Jet Bypass Valve
To independent controls are required, one for the jetting actuator and one for the retro valve.
The actuators can be connected to any standard three-position 4-way solenoid valve. Pilot
operated check valves is preferred but a closed centre spool valve is adequate. If either
actuator is not used then they must be filled with oil and securely capped. This is particularly
important for the jet bypass valve, which could easily be pulled open severely reducing
efficiency.
The supply pressure for reliable operation is 120 bar.
The actuator connection fittings are: No. 4 JIC male
The jet valve should be powered shut when jetting is not required.