Tractors with an auxiliary hydraulic flow greater than 15 gpm
Connect JIC swivel run tee (9) to 90° male adapter (10) on “K2” port on valve as shown in Figure 27.
IMPORTANT - The location of the JIC swivel run tee will ensure that proper flow is provided to the back- hoe for smooth operation. The flow into the valve from the tractor is divided between the two outlet ports “K2” and “K3”. The hydraulic flow is split so that 60% is flowing from the “K2” port and 40% is flowing from the “K3” port.
4.Assemble 90° JIC adapter (8) to branch port of swivel run tee fitting (9).
5.Assemble 45° JIC adapters (7) to both “In/Pressure” and “Out/Return” ports on the back- hoe bulkhead connection.
6.Connect 24” hydraulic hose (11) between 45° JIC adapter (7) on backhoe “In/Pressure” bulkhead connection and single 90° male adapter (10) locat- ed under flow divider valve.
7.Connect 24” hydraulic hose (11) between 45° JIC adapter (7) on backhoe “Out/Return” bulkhead con- nection and JIC swivel run tee (9) on flow divider valve.
8.Assemble quick coupler (supplied by customer) to pressure line hydraulic hose (supplied by customer) and connect free end of hose to 90° male adapter (10) at top of flow divider valve.
9.Assemble quick coupler (supplied by customer) to return line hydraulic hose (supplied by customer) and connect free end of hose to 90° JIC adapter (8) on flow divider valve.
10.Carefully route pressure and return line hydraulic hoses to tractor remote hydraulic connections. Remove dust caps from tractor remote hydraulic connections and connect hoses to the appropri- ate port on tractor.
Figure 27
FOR TRACTOR HYDRAULIC
FLOW GREATER THAN 15 GPM
| 7 |
To Backhoe Bulkhead |
|
“Pressure” Connection |
|
To Backhoe Bulkhead | 7 |
“Return” Connection |
Testing Backhoe Hydraulic Hook-Up
1.Start tractor engine.
2.Set parking brake and engage tractor remote hydraulics so that oil flows to backhoe. NOTE! Consult tractor Operator’s Manual for proper operation.
3.Exit tractor and sit in backhoe operator’s seat.
4.To remove air from backhoe hydraulic system, slowly cycle all backhoe functions (stabilizers, boom, dipperstick, bucket, and swing) several times. Be sure to cycle stabilizers first and then lower both stabilizer arms into operating position before cycling other backhoe functions.
5.Exit backhoe, disengage tractor remote hydraulics, stop engine, and check tractor hydraulic fluid level.
Backhoe Mounted to Skid Steer Loader
1.Assemble 90° male adapter (10) to inlet port at bottom of flow divider valve as shown in Figure 28.
2.Assemble flow divider valve (5) to Great Bend skid steer adapter using 5/16” x
3.Assemble remainder of fittings to flow divider valve according to instructions that follow.
Pressure Line | 10 | |
5 | ||
From Tractor | ||
| K3 | |
8 |
| |
Return Line | K2 | |
To Tractor | ||
| ||
| 10 | |
| 9 | |
11 |
|
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