Denison Hydraulics Goldcup Series, Информация о сервисе, Страница: 6 / 48

6
FILLING CASE
It is essential to make certain that the case (pump housing) is as full of fluid as possible
and remains full during operation and at rest.
Always fill to the highest available point. Remove a plug or screw and allow the oil to
escape through this point.
Recommended fill points:
Mounting orientation vertical, shaft up. D1 or D2 (drain) port in housing
Vent DG2 port in mounting flange (new units)
or one of the upper screws which attach the
control. See installation drawing.
Vertical, shaft down
1)
or horizontal D1 or D2 (drain port in housing.
drain ports to the side
1)
Vent DG (case gage) port in port block.
MAINTENANCE This pump is self-lubricating and preventative maintenance is limited to keeping system
fluid clean by changing filters frequently. Keep all fittings and screws tight. Do not oper-
ate at pressures and speeds in excess of the recommended limit. If the pump does not
operate properly, check the Trouble Shooting Chart before attempting to overhaul the
unit. Overhauling is relatively simple and may be accomplished by referring to the
Disassembly, Rework Limits of Wear Parts and Assembly Procedures.
Fluid must be cleaned before and continuously during operation by filters that maintain a
cleanliness level of NAS 1638 Class 8.
START UP PROCEDURE
• Read and understand the instruction manual. Identify components and their function.
• Visually inspect components and lines for possible damage.
• Check reservoir for cleanliness and drain and clean as required.
• Check fluid level and fill as required with filtered fluid at least as clean as that recom-
mended. Fill pump case with clean oil prior to starting.
• Check alignment of drive.
• Check oil cooler and activate it, if included in circuit. Check fluid temperature.
• Reduce pressure settings of relief valve. Make sure accurate pressure readings can be
made at appropriate places.
• If solenoids in system, check for actuation.
• Start pump drive. Make sure pump and motor fill properly.
• Bleed system of air. Recheck fluid level.
• Cycle unloaded machine at low pressure and observe actuation (at low speed, if
possible).
• Increase pressure settings gradually in steps. Check for leaks in all lines especially in
pump and motor inlet lines.
• Make correct pressure adjustments.
• Gradually increase speed. Be alert for trouble as indicated by changes in sounds, sys-
tem shocks and air in fluid.
• Equipment is operational.
FLUID CLEANLINESS
INSTALLATION
Revised