10(18)
In other cases the pressure left in the system must be relieved by opening the hose fitting slightly with tools.
Keep both of the hoses disconnected and wrap the fitting in a cloth to prevent oil spillage. When the fitting is
opened slightly, a small amount of oil will be released; beware of the oil. Wear protective gloves and goggles.
Tighten the fitting immediately after the procedure.
The backhoe may move when the pressure is released, stay clear from the danger
area. To prevent oil spillage wrap the fitting with cloth when releasing pressure from
the hoses.
When removing the attachment, always disconnect the hydraulic fittings before
detaching the quick attach plate, to prevent hose damage and any oil spills. Reinstall
the protective caps on the fittings to prevent impurities from entering the hydraulic
system.
Never connect or disconnect quick couplings or other hydraulic components while the
system is under pressure. High-pressure fluid ejection may cause injuries.
Keep the fittings as clean as possible; use the protective caps for the quick couplings on both the attachment
and the loader. Dirt, ice, etc. may make using the fittings significantly more difficult. Note that the protective
caps on the loader and the attachment can be fastened to each other during operation to reduce the
accumulation of dirt. Never leave the hoses hanging on the ground; place them on top of the equipment.
5.4.
Control valve of the backhoe
In larger excavation tasks and constant changing of location it is advisable to mount the control valve on the
bracket on the loader boom that is included in the installation kit of the backhoe. The backhoe may be
operated from the control position next to it in tasks demanding accuracy or when visibility is hindered, or
when using the backhoe only for a little while. Move the control valve back to its place on the backhoe before
taking the backhoe off from the loader.
To prevent unintended movements of the backhoe shut down the loader and lower the
bucket of the backhoe onto ground before starting to move the valve. Make sure that
the valve is securely locked on the selected operating position with the locking screw.
On loaders equipped with cabin L, LX or DLX, the lower section of the windscreen must
be removed to make it possible to mount the valve on the boom.
5.5.
Mounting a bucket on the backhoe
The buckets are connected to the backhoe with two pivot pins. Change the bucket when the backhoe is
mounted to the loader. Place the bucket near the ground. Ensure that the backhoe is adequately supported.
Hold the bucket while removing it and use a soft hammer or a block of wood to soften the hits, so that the
pins will not get damaged. Do not hit directly at the pins.
5.6.
Grading bucket
With the grading bucket it is easy to level the ground surface to desired slopes or to dig a ditch. The
backhoes are equipped with necessary components to fit and operate the grapple bucket; the control valve
has the needed block and lever for the bucket. To mount the grading bucket, also hydraulic quick couplings
should be mounted on the backhoe. Contact service if needed.
