SCH5000 Drill Rig Service Manual Cat Rotary Track Drill – PDF DOWNLOAD
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SCH5000 Drill Rig Service Manual Cat Rotary Track Drill – PDF DOWNLOAD
Proper adjustments of the Vickers pump requires that three (3) adjustments to the pump controls be made:
1. The adjustments should be made with the unit at normal operating temperature. If possible, drill a few holes with unit to warm the hydraulic system. Unload the pump. (Drill/Tram switch in Tram mode)
2. With the pump in the unload mode, the pressure gauge will indicate standby pressure. Standby pressure should be 450psi . The pressure is adjusted with the 1/2″ hex screw on the pump compensator control. Loosen the 11/4″ jam nut and turn the hex screw clockwise to increase the pressure
and counter clockwise to decrease the pressure.
3. Use a 3/18″ hex key to remove the #4 o’ring boss plug. Refer to the left handside of the attached diagram – early pumps had only one (1) plug, but later units are equipped with two (2) plugs located side by side. Remove the plug that is not located in a counter-bore. This will expose the maxmum pressure adjustment. This adjustment is done with a 1/8″ hex key. Turning clockwise will increase the pressure and counter clockwise will decrease the pressure.
1. The adjustments should be made with the unit at normal operating temperature. If possible, drill a few holes with unit to warm the hydraulic system. Unload the pump. (Drill/Tram switch in Tram mode)
2. With the pump in the unload mode, the pressure gauge will indicate standby pressure. Standby pressure should be 450psi . The pressure is adjusted with the 1/2″ hex screw on the pump compensator control. Loosen the 11/4″ jam nut and turn the hex screw clockwise to increase the pressure
and counter clockwise to decrease the pressure.
3. Use a 3/18″ hex key to remove the #4 o’ring boss plug. Refer to the left handside of the attached diagram – early pumps had only one (1) plug, but later units are equipped with two (2) plugs located side by side. Remove the plug that is not located in a counter-bore. This will expose the maxmum pressure adjustment. This adjustment is done with a 1/8″ hex key. Turning clockwise will increase the pressure and counter clockwise will decrease the pressure.
4. With a screwdriver, remove the dust cover located on the opposite end of the compensator control. This will expose the differential pressure adjustment screw. This adjustment requires a 5/32″ hex key. The same procedure as described above is applied to make the adjustment.
TABLE OF CONTENTS:
SCH5000 Drill Rig Service Manual Cat Rotary Track Drill – PDF DOWNLOAD
1. Pump pressure adjustments
2. Drilling pressure adjustments
3. ramming adjustments
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