Installation
GE, GX Series
Backhoe
20
5. Installation
5.1 Equipment Matching
To ensure the safe and reliable operation of the Wallenstein
backhoe, it must be correctly matched to your carrier machine
(tractor or skid steer). Consult your machine owner's manual
for specifications. Use the following guideline to make sure the
backhoe requirements match your machine.
Tractor / Skid Steer Size
The weight and size of the tractor or skid steer determines
backhoe size for optimum stability during operation. Use the
following table as a reference to match backhoe model to carrier
machine.
Model
Engine hp (kW)
Range
Carrier Machine
Type
GE605
15–35 (11–26)
Tractor only
GX620
20–40 (15–30)
Tractor
20–50 (15–37)
Mini Skid Steer / Skid Steer
GX720
30–65 (22–48)
Tractor
30–75 (22–56)
Skid Steer
GX920
45–120 (34–89)
Tractor
45–120 (34–89)
Skid Steer
GX920XT
60–120 (45–89)
Tractor
60–120 (45–89)
Skid Steer
Hydraulic Oil Flow Requirements
Backhoe pressure and return hoses are connected to spare
hydraulic ports on the carrier machine.
IMPORTANT! Wallenstein backhoes are designed to
operate at a specific flow rate. Operating the backhoe above
the specified flow rate can damage seals and void the
warranty.
Backhoe Model
Oil Flow Required
GE605, GX620
4–12 gpm (15–45 Lpm)
GX160, GX920, GX920XT
5–27 gpm (19–102 Lpm)
IMPORTANT! When mounting a GE605 or GX620 backhoe
to a skid steer that has a flow rate greater than 8 gpm
(32 Lpm), BFC501 Flow Divider Kit is required to prevent
damage to the seals and voiding the warranty.
Tractor Weight
The tractor or skid steer must have sufficient weight to provide
stability It is recommended that a tractor be equipped with a
front-end loader. This provides the required weight on the front
for transport stability and counterbalance during operation.
5.2 Mounting Requirements
The backhoe is shipped from the factory in a basic
configuration. It can be mounted to any model tractor or mini
skid steer with one of the following appropriate mounting kits.
5.2.1 Tractor Subframe
Wallenstein
backhoes are designed to be attached to a tractor
with a model-specific subframe.
There are two types of Subframes:
Four-point mount
—Left and right-hand braces that extend
underneath the tractor connected to a four-point link mount.
Belly mount
—A one-piece frame mounted to the bottom of the
tractor and backhoe.
Because of the extra forces a backhoe places on a tractor frame,
a subframe kit is required. Subframes are not available for
tractors over 75 hp (56 kW).
Wallenstein subframes are built to be model-specific. The
subframe must be installed on the tractor before installing the
backhoe. If you intend on using this backhoe on a different
model tractor, a different subframe kit is required.
00951
Fig. 7 –
Belly-mounted subframe
