. MAINTENANCE SERVICE PROCEDURE CHECK PLAY OF OUTPUT COUPLING OF OUTPUT SHAFT WARNING 1. Set wire (4) as shown in the diagram. By using the tip of the wire as a benchmark, measure the amount of movement (L) of the coupling. 3. Check that the engine fan is not rotating. the or for 4 - 45 T o prevent the machine from mo ving, set the parking brake switch to P ARKING, stop the engine, then put blocks under the w heels. If any abnormal noise occur s around the output shaft (1) or fr ont drive sha ft (2), the rubb er inside the ou tput shaft may be deteriorated or dam aged, so check the play of the co upling (3 ) as 2. By using bar (5), rotate t he coupling at a force of approx.
{5 kg} in the direction ar When doing this, mark t ound the circumference. he position of the wire. REMARK If excessive force is used in rotating the coupling, the en If rotates freely and it become s impossible to judge accurately. 4. Rotate the coupling in th e reverse direction from step 2. When doing this, mark t as in step 2. he position of the wire in the same 5. Measure the amount of movement (L) of the coupling by u the marks made in step If amount of movement rubber inside the out damaged, so contact y disassembly and inspec shaft. s 2 and 4. (L) is more than 15 mm (0.6 in) put shaft may be deteriorate our Komatsu distributor and as tion of the internal parts of the ou