Instruction book for compressor type HV2/200
Page 16
5.4 Bearings
The compressor crankshaft is fitted with replaceable, two-piece sleeve bearings. The central frame bearing also
controls movement of the shaft in the axial direction.
The crosshead bearings are one-piece sleeve bearings which are pressed into the connecting rods. Tolerances
and clearances for the crankshaft, frame and crosshead bearings are set out in Table 6.4.
All the sleeve bearings are pressure lubricated.
Following inspection or replacement of the crankshaft or frame bearings, it is important to ensure that the
bearing bushes do not pinch the crankshaft. It should be possible to turn over the compressor by hand.
New two-piece bearings are treated with a running-in coating.
Assembling a crosshead bearing liner on a connecting rod:
A
Remove old liner using a hydraulic press or puller.
B
Push in new liner.
C
After assembly of the bearing bush, a hole must be drilled for the oil supply and locking screw.
Drill diameter: 6.8 mm.
D
The hole for the locking screw must have M8 thread.
Fig. 5.1 Assembling crosshead bearing liner
