Wallenstein QC605, Operator'S Manual

Page: 23 / 38

QC605 / B, QC620
Skid Steer Mounted Backhoe
Familiarization
23
4.4 Equipment Matching
• The QC605 and QC605B back hoes are designed
to mount on mini skid steer machines. The
QC605B backhoe is specifically designed to mount
on Bobcat® mini skid steers.
• The QC620 is designed to mount on regular-sized
skid steer machines.
WARNING!
Risk of ROPS failure. Do not install backhoe
on the skid steer if the total skid steer and
equipment weight exceeds the ROPS weight
certifi cation.
W022
To insure the safe and reliable operation of the
backhoe, it is necessary to make sure the backhoe and
skid steer are properly matched. The skid steer must
be equipped with remote hydraulic connections on the
front of the loader frame.
Consult the skid steer operator's manual for machine
specifications. Use the following requirements as a
guide.
1. Horsepower: The ideal skid steer horsepower
range is 50–65 hp.
2. Skid Steer Weight:
Follow the skid steer
attachment weight recommendation to provide
stability for the unit when digging or transporting.
3. Hydraulic System: The skid steer hydraulic
system must be capable of 5 gpm (19 Lpm) at
2000 psi (13,800 kPa). The backhoe requires two
circuits—one for the dipper and one for the bucket.
4.5 Controls
Always review the controls section of the Skid Steer
operator’s manual to be familiar with the location,
settings and function of the controls. Be familiar with
the controls before starting.
4.6 Attaching and Unhooking
Backhoe
4.6.1 Attaching Backhoe
Refer to the skid steer operator's manual for
instructions on installing an attachment.
WARNING!
Ensure lock pins are securely latched before
operation. Failure to secure pins could result in
serious injury or death.
W014
1. Position the backhoe on level ground in a clear
area. Make sure there is enough space to drive the
skid steer safely up to the backhoe.
2.
Begin driving up to the backhoe while aligning the
mounting components.
3. Drive into the mounting frame.
4. Seat the top of the face plate into the frame of the
backhoe.
5. Raise the skid steer loader and tilt the face plate
until it is fully mated.
6. Engage the lock pins to secure the backhoe to the
skid steer.
7. Connect hydraulic couplers. Make sure they are
securely seated.
8. Start the engine and slowly cycle the bucket
cylinder several times to purge the system of air.
Check for leaks.
4.6.2 Unhooking Backhoe
Reverse the above procedure when unhooking.
1. Set the backhoe down on wood blocking and turn
the engine off.
2.
Move the bucket tilt control lever several times to
relieve any trapped pressure in the lines.
3. Disconnect the couplers, install the dust caps and
place them in their stowed position.
4. Follow the skid steer manual for detaching an
attachment.
NOTE: If storing the backhoe for a period of time,
refer to Storage on page 29.