24. SERVICE PROCEDURE 24.2.8 ADJUST BUCKET CLEARANCE ¤ WARNING It is dangerous if the work equipment moves by mistake when the clearance is being adjusted. Set the work equipment in a stable condition, then stop the engine and lock the lever securely. Lock Free AM088930 1. Set the work equipment to the position shown in the diagram at right, stop the engine and set the lock lever to the locked position. 2. Measure the amount of play “a”. Measurement is easier of you move the bucket to one side or the other so all the play can be measured in one place. Use a gap (clearance) gauge for easy and accurate measure- ment. a 3. Loosen 4 plate mounting bolts 2 , and loosen plate 3 .
The shim is a split type, so the operation can be carried out without removing the bolts. 4. Remove shim 4 corresponding to the amount of play “a” measured above. AM091380 Arm Bucket [Example] In the case of play of 3 mm, remove two 1.0 mm shims and one 0.5 mm shim. Play becomes 0.5 mm. For shim 4 , two types of 1.0 mm and 0.5 mm are used. When play a is smaller than one shim, do not carry out any maintenance. 5. Tighten the four bolts 2 . If the bolts 2 are too stiff to tighten, pull out pin stopper bolt 5 for easier tightening. 3-38