VALVE-RELIEF 1471990 - Caterpillar

The weight of the counterweight is 1420 kg (3130 lb).1. Remove the two rubber plugs from the threaded holes in the top of the counterweight (1). Fasten two suitable lifting brackets to the counterweight using two 4K0684 Washers and two 8C3222 Bolts. Fasten a hoist to the counterweight.2. Open the hood of the machine to provide clearance for counterweight removal.
Damage to the hood will occur if the counterweight is raised more than a 6.4 mm (.25 in) during removal.
3. Remove the four bolts and spacers that hold the counterweight to the frame of the machine. Remove the counterweight. The following steps are for the installation of the counterweight.4. Fasten a hoist to the counterweight (1), and put it in position on the frame of the machine. Do not damage the corner of the hood during installation.5. Apply 9S3263 Thread Lock on the threads of the mounting bolts for the counterweight. Install the four bolts and spacers that hold the counterweight. Tighten the bolts to a torque of 785 78 N m (578 58 lb ft). 6. Remove the lifting brackets from the counterweight, and reinstall the rubber plugs in the threaded holes.