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TABLE OF CONTENTS
INSTALLATION
The following items are necessary to install the device:
Fork truck.
Lag bolts, masonry drill, masonry bit, and wrench for lag bolt, grout, and steel shims.
Power circuit with voltage matching the voltage of the unit including fuses and disconnect or circuit breakers.
Minimize voltage drop by using adequate wire size. Refer to NEC 70 for power circuit specifications.
Move the crusher to its installation location. If using a fork truck, insert the forks into the fork tubes. Drive as far
forward as possible while being careful not to damage the door hinges or door closure mechanism. Once the unit is
placed in its installation location, anchor it to the floor with anchor bolts selected by your building engineer. To
complete the installation:
1. Connect the power source as shown in the appropriate electrical circuit diagram on pp. 11-14.
2. Cycle the unit a few times; then check the oil level in the reservoir. Add oil, if necessary. NOTE: Only use ISO AW-
32 hydraulic fluid or its equivalent.
WASH-DOWN (-WD) MODELS:
Wash the chamber only with warm or cold, non-caustic, low-corrosivity solutions applied at low pressure (˂100 psi).
LOADING THE CHAMBER
Read IMPORTANT NOTE on cover page before loading the chamber. In crushing mode, this device will crush
standard 55 gallon (or smaller) ribbed steel drums. It should not be used to crush smooth-walled drums (without ribs),
which are more resistant to crushing and require much higher crushing forces. NOTE: The machine might not crush a
particular ribbed steel drum. It is also possible that the crusher will sustain minor damage during typical operation.
In compaction mode, the machine should be used to reduce easily compressible materials loaded inside a drum.
NOTE: Crushing and compacting operations must be performed independently. Do not attempt to crush drums loaded
with material. For instance, do not fill drums with scrap metal, paint cans, oil filters, etc. and then attempt to crush the
drum and the contents. The crusher might be severely damaged in the process.
Before operating the machine:
1. Confirm that the platen is properly configured for the task. Platen configurations are discussed on
2. Carefully center the item to be crushed or compacted below the platen. An offset can cause uneven loading and
damage the cylinder rod.
3. Make sure the drum is empty if operating in CRUSH mode.
OPERATION
Read IMPORTANT NOTE on cover page before operating the machine. To operate the crusher: 1) select the
appropriate platen configuration (see "Platen configurations" on p. 16); 2) place a drum inside the crusher and center it
beneath the platen; 3) close the door and latch the door; 4) turn the key switch on the control box to the appropriate
mode, i.e. either CRUSH or COMPACT; 5) pull out the red emergency stop button; 6) press the "CYCLE START" button
and hold it until the motor engages. NOTE: Each unit is equipped with a momentary contact control. To begin a crushing
or compacting cycle, simply press the START button and hold it until the motor engages. The ram will extend and retract
without having to hold down the button.
The direction of travel is determined by the starting position of the platen. If the platen is fully raised to the top of the
cabinet (cylinder fully retracted), the cylinder will extend when the start button is pressed causing the platen to move
downwards. Otherwise, the cylinder will retract and raise the platen to the "Home" position. The power unit will turn off
at that point. Pressing the cycle start button again will begin a new cycle. The operator must hold the button for a few
seconds to latch the circuit (wait until you hear the motor turn on) and begin the cycle.
When the crusher is in home position and the cycle start button is pressed, the cylinder pushes the platen down
onto (or into if operating in COMPACT mode) the drum. In order to achieve a short cycle time, both sections of the
pump in the power unit drive oil to the cylinder until the cylinder pressure reaches approximately 1000 PSI. At that time,
the higher-displacement section recycles oil to the reservoir while the low-displacement, high-pressure section
continues to pump oil to the cylinder. This arrangement creates a typical High-Low circuit.
As the platen crushes a drum, or compacts the contents of a drum, the cylinder pressure increases until it reaches
the set-point of a particular pressure switch. The valve shifts to center and a timer activates to control the period of
decompression. When the decompression period ends, the directional valve shifts and reverses the direction of oil flow
to the cylinder. Reversing the flow of oil causes the cylinder to retract and raise the platen to the home position. When
the cylinder returns the platen all the way to the top of the cabinet, the power unit turns off. At this point, the cabinet
door can be opened to empty the chamber.
The ram can be stopped at any point during a cycle. To stop the ram, press the red emergency stop button located
on the control panel. Pressing the button instantly stops the motor and prevents the cylinder from cycling any further.
To disengage the stop button, pull it out. Press the cycle start button again to retract the cylinder and returns the platen
to the home position. The crusher is again ready for operation.
TABLE OF CONTENTS
Rev. 1/16/2023
Wash-down units are NOT waterproof! Only install and use wash-down units
Copyright 2023 Vestil Manufacturing Co.
HDC-905 MANUAL
indoors.
p.
16.
Page 15 of 19
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