BAR (L.H.) 9K8290 - Caterpillar

Introduction
The following procedure describes the correct method in order to install tool holders on Reclaimer Mixers. Correct installation will prevent the tool holders from possibly coming loose.Installation of the Tool Holder
Personal injury could result when striking an object. Keep personnel away when striking an object. Always wear protective glasses when striking an object.
Illustration 1 g01435570
(1) Tool holder (2) Base (3) Bolt (4) T section
Place tool holder (1) in base (2) .
Hit tool holder (1) on the front of T section (4) four to five times with a steel hammer that weighs 1.8 kg (4 lb) to 2.25 kg (5 lb). This will drive tool holder (1) into base (2). At this point, tool holder (1) and base (2) will be locked together by the tapers.
Striking the tool holder with the hammer will cause a dull heavy sound. When the tool holder has been seated in the base, striking the tool holder with the hammer will cause the tone to change to a high pitch. The change of tone signifies that the tool holder and the base have locked together.
Once tool holder (1) has seated in base (2) install bolt (3). Tighten bolt (3) to a torque of 88 7 N m (65 5 lb ft).Note: Do not use only the torque on the bolt to seat the tool holder. The strength of the bolt is insufficient to apply the required load for assembly.
Operate the machine for four to six hours.
Check the tool holders and bolts. Reseat any loose tool holders and tighten any loose bolts. Refer to Step 2.
Operate the machine for 10 to 12 hours. All tool holders should be tight. If any tool holders are loose disassemble the tool holders. Reassemble the tool holders. Refer to Step 2.
Tool holders and bases that have been tightened twice are locked together by the tapers. The tool holders and bases should remain locked under normal working conditions. Loss of bolts from a properly assembled unit is not detrimental. The tool holder and the base are locked together by the tapers.Changing Worn Tool Holders
Personal injury could result when striking an object. Keep personnel away when striking an object. Always wear protective glasses when striking an object.
To remove a worn tool holder from the base, hit the back of the tool holder as close as possible to the top of the base with a steel hammer that weighs 1.8 kg (4 lb) to 2.25 kg (5 lb).Note: Do not hit the base with the hammer.
Remove the tool holder and clean any debris from the base.