Initial Start-Up; General; Procedures Start-Up Procedure - Sauer Danfoss 45 Series Service Manual

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staRt-uP PRoCeDuRe
 Caution
Incorrect shaft alignment
may result in damage
to drive shaft, bearings,
or seal which can cause
external oil leakage.
16
Series 45 G Frame Open Circuit Axial Piston Pumps
Service Manual
Initial start-up procedures
Follow this procedure when starting-up a new Series 45 installation or when restarting
an installation in which the pump has been removed.
Warning
Unintended movement of the machine or mechanism may cause injury to the technician
or bystanders. To protect against unintended movement, secure the machine or
disable / disconnect the mechanism while servicing.
Prior to installing the pump, inspect for damage incurred during shipping. Make certain
all system components (reservoir, hoses, valves, fittings, heat exchanger, etc.) are clean
prior to filling with fluid.
1. Connect the pump to the prime mover. Ensure that pump shaft is properly aligned
with the shaft of the prime mover.
2. Fill the reservoir with recommended hydraulic fluid. Always filter fluid through a 10
micron filter pouring into the reservoir. Never reuse hydraulic fluid.
3. Fill the main pump housing with clean hydraulic fluid. Pour filtered oil directly into
the upper most case drain port.
4. Fill the inlet line leading from the pump to the reservoir. Check the inlet line for
properly tightened fittings. Be certain it is free of restrictions and air leaks.
5. To ensure the pump stays filled with oil, install the case drain line in the upper most
case drain port.
6. Install a gauge at port M1 or M2 to monitor system pressure during start up.
Follow recommendations in the vehicle / machine operator's manual for prime mover
start up procedures.
7. While watching the pressure gauge installed at M1 or M2, jog the prime mover
or run at the lowest possible speed until system pressure builds to normal levels
(minimum 11 bar [160 psi]). Once system pressure is established, increase to full
operating speed. If system pressure is not maintained, shut down the prime mover,
determine cause, and take corrective action. Refer to Troubleshooting, page 17.
8. Operate the hydraulic system for at least fifteen minutes under light load conditions.
9. Check and adjust control settings as necessary after installation. Refer to
Adjustments, page 21.
10. Shut down the prime mover and remove the pressure gauge. Replace plug at port M1
or M2.
11. Check the fluid level in the reservoir; add clean filtered fluid if necessary.
The pump is now ready for operation.
520L0605 • Rev AB • December 2010
