PUMP & MTG GP-HYDRAULIC 3119552 - Caterpillar

Illustration 1 g01254512
Typical example
(1) The bearing shell for the connecting rod
Table 1
Bearing Width for the Connecting Rod 31.62 to 31.88 mm (1.245 to 1.255 inch)
Bearing Width for the Connecting Rod Cap 31.62 to 31.88 mm (1.245 to 1.255 inch)
Thickness of Connecting Rod Bearing at the Center 1.835 to 1.842 mm (0.0723 to 0.0725 inch)
Thickness of Connecting Rod Bearing for the Cap at the Center 1.835 to 1.842 mm (0.0722 to 0.0725 inch)
Bearing Clearance 0.034 to 0.081 mm (0.0013 to 0.0032 inch)
Table 2
Undersized Connecting Rod Bearing
0.25 mm (0.010 inch)
0.51 mm (0.020 inch)
0.76 mm (0.030 inch) The mating surfaces of the connecting rod are produced by hydraulically fracturing the forged connecting rod. (2) Tighten the setscrews for the connecting rod to the following torque. ... 40 N m (30 lb ft)Tighten the setscrews for the connecting rod for an additional 120 degrees. The setscrews for the connecting rod (2) must be replaced after this procedure.Note: Always tighten the connecting rod cap to the connecting rod, when the assembly is out of the engine. Tighten the assembly to the following torque 20 N m (14 lb ft).
Illustration 2 g01254518
Typical example
(3) Diameter of the finished bore for the piston pin ... 43.01 to 43.04 mm (1.693 to 1.694 inch) (4) Distance between the parent bores ... 219.05 to 219.10 mm (8.624 to 8.626 inch) (5) Diameter for the finished bore for the connecting rod bearing ... 67.21 to 67.22 mm (2.6460 to 2.6465 inch)
Illustration 3 g00915056Connecting rods are color coded. The color code is a reference for the length (Y) of the connecting rod. Refer to table 3 for the different lengths of connecting rods.
Table 3
Length Grades for Connecting Rods
Grade Letter Color Code Length (Y)
F Red 165.728 to 165.761 mm (6.5247 to 6.5260 inch)
G Orange 165.682 to 165.715 mm (6.5229 to 6.5242 inch)
H White 165.637 to 165.670 mm (6.5211 to 6.5224 inch)
J Green 165.591 to 165.624 mm (6.5193 to 6.5206 inch)
K Purple 165.545 to 165.578 mm (6.5175 to 6.5188 inch)
L Blue 165.499 to 165.532 mm (6.5157 to 6.4961 inch)