SECTION IX - SPECIAL PROCEDURES
9.5 RELEASING SWING BRAKE
WARNING Make certain that the attachment is on the ground to help prevent sudden rotation of the upper structure before attempting to release the swing brake. Refer to section X “LOWERING ATTACHMENT WHEN SUDDEN ENGINE FAILURE OCCURS”.
A. TOOLS & EQUIPMENT REQUIRED 1. Handtools required for removal of hydraulic tubes, hoses and fittings 2. Plugs and caps for tubes, hoses and fittings 3. 14 mm allen wrench 4. 6 mm allen wrench 5. Overhead lifting device capable of lifting and holding 45 kg (100 lb) 6. Plenty of clean, dry shop rags 7. Torque wrenches B. PROCEDURES 1. Lower attachment to ground. Refer to
INSTALL PROPER CAPS AND PLUGS ON HOSES, TUBES AND FITTINGS TO HELP PREVENT CONTAMINATION ENTERING THE SYSTEM F16305
previous page for proper procedures in lowering the attachment. 2. Remove all hoses and tubes from the swing motor top plate and swing valve to gain access to the top plate mounting bolts. 3. Install the proper plugs and caps onto hoses, tubes and fittings to avoid the possibility of contamination entering the hydraulic system.
M12-1.75X20mm LIFTING EYE
CAUTION Use only plugs and caps designed to properly seal the specific hose, tube or fitting they are to be installed on.
4. Thoroughly clean the top of the slewing motor and slewing valve removing all dirt and debris.
NOTE: Place a large quantity of clean, dry shop rags around the swing motor to help catch any overflow of hydraulic oil from the removal of the top plate.
LOOSEN FOUR TOP PLATE ATTACHING BOLTS
5. Loosen the four top plate attaching bolts with the 14 mm allen wrench.
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