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© 2003 Alamo Group Inc.
Section 10 - 5
A-Boom (JD6615 / 7615 Asy Instruction Manual) 07/03
Optional Mower Head Installation
Attaching Timber Cat Head:
1. Attach the Timber Cat Head to the boom using the pins included with the head. Be careful not
to damage the pivot bushings in the boom when inserting the pins. Attach the 90° elbow (Item 1) to the
front port of the boom and position it so that it faces down. Attach the 90° end of the return hose (P/N
02973125) to the fitting and attach the straight end to the 90° fitting (Item 2) on the flow divider (if it is not
already connected). Attach the pressure hose (P/N 02973124) to the rear port of the boom and attach
the other end to the 90° elbow (Item 3) on the flow divider (if it is not already attached). (See Figure 6.)
2. Be sure the hoses are routed as shown in the figure and securly tighten all connections. Stop
here and go to Hydraulic Oil Tank fill setion, DO NOT Start Tractor untill Hydraulic tank has been filled.
Start tractor and move the head tilt through its motions and check for excessive twisting and bending. It
may require many attempts to obtain the optimum hose connection position. Once achieved, start the
tractor and position the head in a safe area for operation, if necessary, baracade the head to prevent
any contact while it is being operated. This unit is dangerous - STAY AWAY - anytime the tractor is in
operation! Turn on the head and bring the tractor engine up to normal operating speed (540 PTO
RPM). Tighten any leaking hydraulic fittings.
Caution, too much tightening can cause the fittings to
crack and require replacement. Use recommended hose end torque valves found in the Maintenance
Section.
WARNING Escaping fluid under pressure can penetrate the skin causing serious injury.
Relieve pressure before unhooking hydraulic or other lines. Tighten all connections before
applying pressure. Keep hands and body away from pinholes and mozzles which eject
fluids under high pressure. Use a piece of cardboard to search for leaks. If ANY fluid under
pressure is injected into the skin, it must be surgically removed within a few hours by a
doctor familiar with this type injury or gangrene may result.
Boom
Pressure Hose
Return
Hose
1
2
3
Flow Divider
Figure 6