Carrier AquaEdge 19XR3-E Start-Up, Operation And Maintenance Instructions Manual page 78

Table of Contents

Table 40 — 19XR Compressor Frame 3 Fits and Clearances (in.)

ITEM

Low Speed Journal-Gear End

Low Speed Journal-Motor End

Low Speed Labyrinth to Thrust Disk

Labyrinth to Low Speed Shaft

Low Speed Shaft Thrust Float

Impeller Eye to Shroud

Impeller Bore to Shaft-Rear

Impeller Bore to Shaft-Front

Impeller Discharge to Shroud

Impeller Spacer to Shaft

Slinger to Shaft

Labyrinth to Slinger

Labyrinth to Impeller

High Speed Journal-Impeller End

Thrust Assembly Seal Ring Axial Clearance

Thrust Assembly Seal Ring to Shaft

High Speed Shaft Thrust Float

High Speed Journal-Gear End

NOTE(S):

a. All clearances for cylindrical surfaces are diametrical.

b. Dimensions shown are with rotors in the thrust position.

c. Frame 3 rolling element style high speed shaft and bearing assembly cannot be pulled from impeller end. The transmission assembly must be removed from the compressor

casting (after the impeller is removed) and the bearing temperature sensor must be removed from the high speed shaft and bearing assembly before the high speed shaft and

bearing assembly can be separated from the transmission.

d. If any components within a rolling element high speed shaft and bearing assembly are damaged it is recommended that the entire high speed shaft and bearing assembly

be replaced.

e. Impeller spacing should be performed in accordance with the most recent Carrier Impeller Spacing Service Bulletin.

Depends on impeller size; contact your Carrier Service Representative for more information.

Fig. 53 — Compressor Fits and Clearances — Single-Stage Compressors

COMPRESSOR

Code

DESCRIPTION

SEE VIEW A1 OR A2

COMPRESSOR, TRANSMISSION AREA (FRAME 5 COMPRESSOR SHOWN)

1) OIL HEATER RETAINING NUT (NOT SHOWN)

2) BULL GEAR RETAINING BOLT

3) DEMISTER BOLTS (NOT SHOWN)