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Escaping fluid under pressure can be nearly
invisible and have enough force to penetrate the
skin causing serious injury. Use a piece of
cardboard, rather than your hands, to search for
suspected leaks. Wear protective gloves & safety
glasses or goggles when working with hydraulic
systems.
Avoid the hazard by relieving pressure before
disconnecting hydraulic lines.
NOTE
On most tractors this can be done by putting the valve
controls in the float position before the engine is stopped.
Hydraulic Hose Installation
1. Turn O-Ring end of Restrictor into the cylinder ports.
Install Elbow Fitting onto Restrictor.
2. Attach longer hose to Cylinder rod end Elbow Fitting
and shorter hose to Cylinder base end Elbow Fitting.
Run hoses along the frame and down the drawbar
towards the tractor securing hoses with twin clamps.
WARNING
Figure 3-4: Hydraulic Hose Installation
3. Turn O-Ring end of each Adapter Fitting into each
Coupler. Insert JIC end of Adapter into the end of
each hose. See Figure 3-4.Tightening Procedure For
JIC 37° Swivel Female Nuts
1. Check flare and seat for defects.
2. Lubricate the connection.
3. Install hoses without twists.
4. Hand tighten until connection bottoms.
5. Using 2 wrenches to prevent twisting, rotate the
swivel nut 2 wrench flats (1/3 turn).
6. For reassembly, follow the same procedure but
tighten only 1 wrench flat (1/6 turn).
TIGHTENING PROCEDURE FOR SWIVEL
O-RING FITTINGS
1. Lubricate O-ring and install the fitting until the metal
washer which backs up the O-ring contacts the face
of the boss.
2. Then orient the fitting by turning counterclockwise up
to 1 turn.
3. Tighten the lock nut using 50-60 foot pounds torque.
ASSEMBLY
3-3
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