349D2 MHPU Mobile Hydraulic Power Unit Machine System Track Caterpillar


Track
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349D2 MHPU Mobile Hydraulic Power Unit Machine System [M0065452]
UNDERCARRIAGE
TRACK GP
349D2 MHPU Mobile Hydraulic Power Unit Machine System Track


Illustration 1g06022949
(1) Standard pin
(2) Master pin

Table 1
Specification for 301-4522 Track Gp 
Item  Qty  Part  Specification Description 
All joints of the link assembly must have flexibility even with a measurable end play of zero. Flexibility is the ability for movement from the weight of the link assembly. 
Use the following procedure to tighten the track bolts:
1. Tighten the track bolts to 700 ± 40 N·m (516 ± 29 lb ft).
2. Tighten the bolts to an extra 120 ± 5 degrees. 
The maximum assembly force for the link assembly is 725000 N (162987 lb)
The assembly force for the master pin is 77000 N (17310 lb)
Protrusion for the master bushing is 0.00 ± 0.25 mm (0.000 ± 0.010 inch)
Distance between the bolt holes is 190.00 ± 0.37 mm (7.480 ± 0.015 inch)
Distance between the bolt holes is 140.00 ± 0.37 mm (5.512 ± 0.015 inch)
Protrusion for each end of the standard bushing 4.70 ± 0.25 mm (0.185 ± 0.010 inch)
Protrusion at one end of the standard pin 2.00 ± 0.70 mm (0.079 ± 0.028 inch)

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