User Guide
Tree shears_user guide_1.3_EN_29-06-22
4
Preliminary Checks
Tree Shears can be attached to any excavator that meets the necessary mechanical and hydraulic installation
requirements. Check the following points before installation:
Tree Shears should only be mounted on an excavator with sufficient load capacity.
Ensure the Tree Shear is compatible with the excavator’s hydraulic systems and hose connectors.
Check the Tree Shear for any wear; including cracking or breakage. Contact Sandhurst if any such damage
is found.
Mounting Tree Shears to the Excavator’s Quick Hitch System
1. If a bucket is attached, remove from the Quick Hitch Coupler by following the relevant manufacturer’s
instructions.
2. Place the Dipper Arm to ground level and shut down the excavator prior to connecting the hydraulic
auxiliary pipes to the connectors.
3. Engage the coupler to the pins and curl/crowd the coupler
4. If using a fully automatic Quick Hitch, continue to fully curl/crowd the head. Switch to the ‘attach’ or ‘on’
position: the buzzer will cease. Hold the crowd lever for approximately 5 - 10 seconds to allow the hook to
fully engage and clamp. Note: For use of other types of Quick Hitch, refer to the relevant manufacturer’s
instructions.
Safety Note: Before operating the machine, the operator should exit the cab and, from a safe area,
perform a visual check to ensure the hook has fully engaged the pins.
Safety Notes:
The excavator driver should always be in full control of the Tree Shear mounting process.
All other operatives should remain clear of the excavator slewing area.
Always use clear recognised hand signals.
Connect the Hydraulic Lines
Safety Notes:
Extreme care and adequate precautions must be taken to prevent trapping fingers during
installation. Always use certified lifting equipment.
Improper installation can cause serious damage to the Tree Shear and to the excavator. If in
doubt, contact Sandhurst for assistance.
Dismounting/disconnecting Tree Shears is the reverse of that stated above
Ensure the excavator is set-up for ‘dual flow and rotation circuit’. Connect the shears IN hose to the excavator
pressure line. Connect the Shears OUT hose to the excavator return line. Make sure the stop valves are open.
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