Commissioning – Harken HYDRO 2 Power Unit User Manual
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Hydro 2
Commissioning
Closing Circuit
Verify the system installation after completing hydraulic and electrical installation and filling the reservoir. To begin closing the electrical circuit:
1. Flip internal ECB circuit breaker to ON position.
2. Install fuse element between HPU motor and battery cable or flip circuit breaker to ON position.
3. Flip system isolation switch on ECB cover to ON position.
Leak Check
To perform leak check, run one function at a time in a single direction for 5 – 10 seconds. If installation was completed with empty
hoses, increase the run time to 10 – 30 seconds. Perform the following:
1. Confirm hose run is correct by verifying operation of intended function.
2. Inspect each fitting for leakage.
CAUTION! If leak is present, decrease system pressure to 0 psi before tightening fittings.
3. Tighten fitting as necessary.
4. Repeat procedure for all functions.
IMPORTANT! If installation was completed with empty hoses, check the oil level indicator after each function, and add oil as
necessary
One-Way Function Flush
Flush the function motor through the system filter by running each function in a single
direction. Run in same direction as previous step. This process helps ensure system
cleanliness by depositing any contaminates into the system filter. Refer to Run Time
Table. Total length is sum of A and B hose. Repeat procedure for all functions.
Hose size
Run time per 10' (3 m) of Hose
in
mm
sec
3
/
8
10
5
1
/
2
12.5
7.5
5
/
8
16
10
3
/
4
19
15
1
25
25
System Validation
Verify proper function performance and correct switch wiring by running one function at a time first in one direction and then in the other.
Single direction functions, i.e. single speed winch, are operated by one deck switch. If function does not operate per specific user manual,
switch wiring may be incorrect, or A and B hoses may be reversed. If this is the case refer to the Hydraulic and Electrical Installation sections
and verify each step.
Two direction functions, i.e. furlers, two- and three-speed winches are operated by two deck switches. Each switch operates one direction.
Verify each switch operates the intended function direction. If not, either reverse switch wiring at terminal strip inside the ECB, or reverse A
and B hoses. For more specific operational instructions refer to specific function user manual.
Function Pressure Check
Refer to each function’s user manual for maximum flow, maximum pressure and function working load before operation under stated condition.
CAUTION! To avoid equipment damage, DO NOT exceed function’s maximum pressure or maximum flow.
DO NOT exceed the safe working load of any function.
Carefully load system and verify function operates per specific user manual. During function operation, inspect hoses for chafing or
binding. With pressure at zero, inspect fittings for leaks. Ensure proper safety precautions are practiced to avoid personal injury due
to pressurized oil.
CAUTION! If leak is present, decrease system pressure to 0 psi before tightening fittings.
Oil Level and Filter
Maintain an oil level of
2
/
3
-
3
/
4
full as viewed through tank fill indicator.
Most foreign particles flush into the return filters after first few hours of operation. If system was exposed at any time to possible
contamination, replace filter element.
If you have any questions, contact your Harken Tech Service Representative.
Run Time Table