Middle frame and hook arm have a combined weight of 2,100 lbs (953 kg). Hook arm
cylinders weigh 210 lbs (95 kg) each. Attach suitable lifting device prior to removal to
prevent possible injury to personnel.
Blocks supporting middle frame can fall when middle frame is supported by a lifting
device. Have assistant prevent wooden blocks from falling or damage to equipment may
Attach lifting device to hook arm (15).
Turn ON ENGINE switch (16).
With the aid of an assistant, press middle frame safe lowering button (17) while using lifting device to
raise hook arm (15) and middle frame (18).
Remove wooden block and then lower hook arm (15) and middle frame (18).
Turn OFF ENGINE switch (16).
Remove lifting device from hook arm (15).