13. TRANSPORTATION 9) On commencement of lifting. Take up slack in the rope and check for work equipment movement, (due to possible hydraulic drift) adjust lifting hook position, if required, to maintain rope length(s) and angles as shown in the figure on the right. 10) Lift until the machine leaves the ground. At this point stop lifting and check the balance of the machine. 11) If the machine is unstable lower and adjust rope and lifting hook position. 12) Repeat steps 10) and 11) until machine stability is achieved then slowly commence lifting operation. 13.5 PROCEDURE FOR INCREASING OR RE DUCING TRACK FRAME GAUGE Never use the machine for operations with the track fram retracted.
REDUCING TRACK GAUGE 1. Remove center frame mounting bolts a . (one side, front + rear: 18 bolts). u Center frame u Track frame 2. Swing the upper structure and set at a right angle to the track frame on side A which is to be retracted, then use the work equipment to jack up the track frame. 3. Fit block C (wooden block approx. 20 - 30 cm square) in the outside of track frame A , then lower the body a little at a time with the boom cylinder. The track frame will slide and will stop when it contacts the stopper. 4. Lower the machine carefully and install bolts b . (one side, front + rear: 8 bolts out of bolts a ) # Tightening torque: 175 ± 20 kgm 5. Remove steps c (front + rear:
2 places) on the side of the track frame. 6. Follow the same procedure to retract the track frame on the other side. INCREASING TRACK GAUGE 1. Remove center frame mounting bolts b (one side, front + rear: 8) from the front and rear of the track frame on the side to be extended. 2. Install steps c (front + rear: 2 places) on the side of the track frame. # Tightening torque: 28.25 ± 3.25 kgm 3. Swing the upper structure to the side opposite track frame A to be extended until the upper structure is at a right angle to the tracks. # Do not raise the track frame higher than 50 mm. If it is raised too high, the stopper bolt will be twisted and will bend. 4.
Pull the machine forward with the arm, and the track frame will slide sideways. 5. Extend the track frame until it comes into contact with the stopper, then lower the machine slowly to the ground. Install bolts a (one side, front + rear: 18) and tighten to specified torque: # Tightening torque: 175 ± 20 kgm 6. Follow the same procedure to extend the track frame on the other side. # The track gauge should be changed on level, hard ground. # When changing the track gauge, it is dangerous to operate any cylinder suddenly. Always operate the control levers slowly a b PC450-ENG 2-84