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7032 SOUTH 196th - KENT, WA. 98032 - (206) 872-0141 / FAX (206) 872-8710
OPERATION / MAINTENANCE MANUAL
MODEL 50/75 AUGER
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Tube Frame
Exhaust
Muffler
Lifting Eye
Hydraulic Tank
Quick Disconnect
Fittings
Fuel Tank
Locking Doors
Radiator
Figure 1-E. General Description of APE Power Unit
I. GENERAL INFORMATION (Continued...)
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Page 1-6
I-4. General Description of APE Power Unit
The Model 50/75 Auger runs off the an APE power unit, which provides both forward and reverse
hydraulic flow. The engine is mounted to a tubular frame that also serves as a diesel fuel tank. A sheet
metal and tube frame covers the engine and is equipped with locking doors for protection from the
environment. A control panel is located behind one of the doors and comes complete with a 50 foot
control pendant. There are two hydraulic tanks on the power unit. One is the main tank and the other is
a storage tank for extra oil in case the main tank becomes depleted. A hydraulic tank supplies oil to four
pumps. Three pumps feed the auger motor and a small pump supplies oil to the two-speed selector
valve. The Auger is connected to the power unit via five hydraulic hoses. The two large 1 1/2" hoses
are the pressure and return lines for the auger motor. The two small 3/8" hoses are for the clamp system
and the one middle sized 3/4" hose is for the auger motor case drain line. The hoses are attached to
the power unit by connecting the "quick dis-connect fittings" on the end of the hoses leading from the
auger. The fittings go on only one way so there is no chance of hooking up the hoses improperly.
WARNING:
Clean with ether or a clean rag before installing quick disconnects. Make sure you
seat the quick disconnect fittings all the way tight. Failure to tighten the quick disconnects will
stop the flow of oil and will prevent the vibro from operating. Failure to tighten the clamp fittings
completely tight will cause the jaws to either not open or not close. If this happens you may have
to crack the fitting and bleed off the pressure to release the quick disconnects.