Simrad Reversible Pump RPU80/160/300
A clearly formed lip should be visible on the pipe in front of the cutting ring. If this is not present, the nut should be tightened by an additional ½ - 1 turn. Check once again as above. From the
Sharp bends in the pipes (i.e. elbow bends) should be avoided as these restrict the oil flow. For the same reason couplings should not be fitted on bends, see Figure
Figure
Pipes should be bent cold. Attempts to use blowtorch and sand will lead to impurities entering the system, and should therefore be avoided.
Stop cocks should be fitted to all pipes near the pump unit. Sluice cocks or similar should be used, and not cocks of the water supply type. Pipes should be fitted from the stopcocks to the outlet A and B of the pump unit.
Connection to expansion tank
Most hydraulic steering gears have an expansion tank incorporated in the steering wheel pump. At the bottom of this tank is a drain plug, which should be removed and replaced by a coupling which fits the expansion pipe (10x1 mm, US model: 3/8").Fit a 10x1 mm (US model: 3/8") pipe from the wheel pump at a uniform, gradual, downward slope to the pump unit. A stop cock should also be inserted in this pipe near the pump unit.
Connection to separate expansion tank
If the steering wheel pump does not incorporate expansion tank, a separate expansion tank must be installed. This tank should have a volume of 1/4 liter (0.25 qt), and be placed at approximately the same level as the steering wheel pump.
Lock valve for steering wheel pump
If the steering wheel pump is not provided with a lock valve (they most often are), an adequate lock valve should be fitted.
20 | 20220422N |
