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OPERATION
Hydraulic Controls (Models HD and HDPTO)
Quick Couplers
WARNING! Diesel fuel or hydraulic fluid under pressure can penetrate skin or eyes, causing serious
injury or death. Fluid leaks under pressure may not be visible. Use a piece of cardboard or wood to find
leaks. Do not use your bare hand. Wear safety goggles. If fluid enters skin or eyes, get immediate
medical attention from a physician familiar with this injury.
To Connect
1. Remove dirt or debris from the surface of both the
male and female couplers, and from the outside
diameter of the male coupler.
2. Visually check the couplers for corroding,
cracking, damage, or excessive wear. If any of
these conditions exist, the coupler(s) must be
replaced.
3. Install the male coupler into the female coupler.
4. Full connection is made when the ball release
sleeve slides forward on the female coupler.
To Disconnect
1. Relieve hydraulic pressure.
2. Hold the male coupler.
3. Retract the sleeve on the female coupler until the couplers disconnect.
Relieve Hydraulic Pressure (Utility Vehicle And Attachment)
Utility Vehicle
1. Lower the attachment arm fully and put the
attachment flat on the ground.
2. Stop the engine.
3. Place the gear selector lever in Park. (The utility
vehicle key needs to be in the ON position.)
4. Move the hydraulic switch to the left and right
several times to relieve pressure at the couplers.
Attachment
1. Follow the procedure above to release pressure in
the utility vehicle.
2. Connect male coupler from attachment to female coupler of the utility vehicle then
repeat procedure above. This will release pressure in the attachment.
3. Connect the female coupler from the attachment to the male coupler of the utility
vehicle.
Tip: Hydraulic pressure in the auxiliary hydraulic system can make it difficult to engage quick couplers
to an attachment.
Couplers
Hydraulic Switch
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