305.5 Mini Hydraulic Excavator Machine System Specifications Travel Motor Caterpillar


Travel Motor
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305.5 Mini Hydraulic Excavator Machine System Specifications [RENR9433]
HYDRAULIC SYSTEM
MOTOR GP
305.5 Mini Hydraulic Excavator Machine System Specifications Travel Motor



Illustration 1g00815699


NOTICE

In order to prevent damage to the motor, the case must be filled with hydraulic oil at least to the fill port before operation.


(1) Torque for three plugs ... 10 ± 2 N·m (7.4 ± 1.5 lb ft)

(2) Torque for six bolts ... 29 ± 5 N·m (21.4 ± 3.7 lb ft)

(4) Torque for two plugs ... 59 ± 10 N·m (43.5 ± 7.4 lb ft)

Use the following procedure in order to adjust the axial clearance of bearing (6). The following parts are required in order to adjust the axial clearance of bearing (6) : spindle (16), flange (10), crankshaft (7), spacer (3) and bearing (6) .

  1. Lightly punch the installation tool into the outer race of bearing (6). Bearing (6) is installed in crankshaft (7) .

  1. Install the thinnest ring (5) into flange (10) .

  1. Lightly punch the installation tool into the side of the ring.

  1. Insert the thickness gauge between ring (5) and bearing (6) .

  1. Measure the thickness of the ring (5) .

  1. Determine the thickness of the ring. Choose a ring from the 12 rings. Install the ring into flange (10) .

Note: Be sure to adjust the axial clearance of bearing (6) at reassembly. Unusual wear may occur on bearing (6) if the axial clearance is not adjusted.

Use the rings to achieve the correct clearance.

Table 1
Formula for correct clearance    
Maximum thickness of stop ring     Gauge thickness + Current ring thickness    
Minimum thickness     Gauge thickness + Current ring thickness -

0.05 mm (0.002 inch)    

(8) Torque for plug ... 59 ± 10 N·m (43.5 ± 7.4 lb ft)

(9) Apply 9S-3263 Thread Lock Compound to the threads of two bolts. Apply 5P-3931 Anti-Seize Compound to the shoulder of two bolts.

Torque for two bolts ... 252 ± 39 N·m (185 ± 29 lb ft)

(11) Torque for two bolts ... 252 ± 39 N·m (185 ± 29 lb ft)

(12) Torque for five plugs ... 12 ± 2 N·m (8.9 ± 1.5 lb ft)

(13) Torque for two plugs ... 79 ± 10 N·m (58 ± 7 lb ft)

(14) Torque for plug ... 29 ± 5 N·m (21.4 ± 3.7 lb ft)

(15) Torque for two plugs ... 196 ± 15 N·m (145 ± 11 lb ft)

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