8
Section 1: Assembly and Set-Up
BH3512 Backhoes 340-131M
7/14/08
Land Pride
Table of Contents
Section 1: Assembly and Set-Up
Tractor Requirements
!
CAUTION!
Your backhoe must be mounted only on a tractor equipped with
a Category 2 and 3 hitch. Failure to do so may result in serious
injury.
Hydraulic System Requirements
!
CAUTION!
The backhoe valve must be compatible with the hydraulic
system that will power it. Make sure that if you are powering the
backhoe with an open center hydraulic system, the backhoe is
set for open center operation. If you are using a closed center
hydraulic system, the valve must be set for closed center
operation. If you are using a power beyond setup, the valve must
be converted for this use. See the appropriate section of this
manual on how to convert your valve. If you do not know how
your valve is currently setup, check with your Land Pride
dealer.
Your backhoe cylinders have been filled with oil at the
factory. The oil in the unit is compatible with most tractor
manufacturers’ oil. Do not move any control levers on the
unit until after hydraulic connections to the tractor or the
independent hydraulic system have been made.
The Land Pride Backhoe has been designed to be
operated at a flow rate of 8-11 GPM.
Since many tractor systems exceed a flow rate specified
for your backhoe, the flow may have to be adjusted by
throttling the engine RPM down to obtain an acceptable
flow rate. By adjusting the flow rate correctly, you will
prevent sudden shock loads on the cylinders, pins,
hoses seals, etc. This results in a smooth operation and
reduced maintenance costs and down time.
NOTE: In order to maintain steering control on your
tractor, ballast may need to be added to your tractor.
To determine whether or not to add the ballast, refer
to your tractor’s operator manual.
Open Center System
Remove cap from the 1/2” high pressure hose connected
to the right hand side of backhoe valve. The high
pressure hose may be connected to any high pressure
outlet in the tractor system. A tractor remote hydraulic
valve is usually the preferable source. An oil quick
coupler that is compatible to the oil coupler on the tractor
valve is permissible.
The return hose must be connected so that the oil returns
directly to the tractor oil sump. DO NOT connect the
return hose directly to the tractor remote valve. If the
operator would be reversed. This could result in damage
to the return hose or the backhoe’s hydraulic valve.
!
CAUTION!
The hydraulic valve can be damaged by reverse flow of oil
through the valve, disconnecting the return hose while the
tractor is running, and by using more than 12 GPM of oil flow
while operating. The valve manufacturer will not warrant the
valve when damaged under these circumstances.
Closed Center System
Power Beyond Closed Center Kit
Part No. 340-084A
!
CAUTION!
If you are going to use a closed center tractor hydraulic system
to power your Land Pride Backhoe, A Power Beyond and
Closed Center Kit must be purchased from your Land Pride
Dealer, then you must follow carefully the directions below.
Failure to do so may cause extensive damage to your tractor
and/or Land Pride Backhoe.
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