45
flatness on these seal noses are two light bands or .00002” flatness. Install a seal repair
kit for the specified seals in your unit. See your Sundyne Compressor Specification Sheet
or Recommended Spare Parts List Bill of Materials for the part numbers.
Step 14
Inspect all rotating faces in your unit (process and gearbox). If rotating faces are nicked,
cracked, or have wear rings from seal contact replace them with new hardware. Check
the flatness of the rotating faces to factory specifications. Flatness is specified at two light
bands or .00002” flatness. The rotating face for the gearbox seal (51D) is to have a matte
finish applied. The matte finish is specified as 10-15 Ra micro finish, and still maintaining
the flatness of .00002” or two light bands.
Step 15
Inspect the high speed shaft shoulder where the gearbox rotating face locates. Check for
nicks or dings, and raised surfaces on this shoulder. If any abnormalities are found, the
shoulder will need to be relapped to factory specification of two light bands flatness or
.00002”. If this specification cannot be met replace the high speed shaft (A130).
Step 16
Inspect the high speed shaft (A130) thrust surfaces. If these show abnormal wear, burns,
gouges, deep circular scratches or wear patterns, replace the high speed shaft (A130)
with a new assembly.
Step 17
Lubricate all other parts thoroughly with light turbine oil.
Table 7.1 Bearing and Shaft Clearances
Item
No.
Description Characteristics
Critical
Size
101B HO06AY01/HO06AY02
Upper, Gearbox Housing
Upper, Input Bearing Bore
Ø
4.3311
±
.0005
Upper, Idler Bearing Bore
Ø
3.6255
±
.0005
102
PL01AY01 Bearing Plate
Lower, Input Bearing Liner
Ø
4.3311
±
.0005
Upper High Speed Shaft
Bearing Bore
Ø
3.1880
±
.0005
101A HO05AY01/HO05AY02/HO05AY03
Lower, Gearbox Housing
Lower, High Speed Bearing
Bore
Ø
3.1880
±
.0005
Lower, Idler Bearing Bore
Ø
3.6255
±
.0005
151D
BE09AY01A, Upper Idler Bearing
Journal Inside Diameter
Ø
2.5065
±
.0005
151C
BE09AY02A, Lower Idler Bearing
Journal Inside Diameter
Ø
1.7545
±
.0005
151B
Upper High Speed Bearing
Maximum Bore Diameter
Ø
1.5015
151A
Lower High Speed Bearing
Maximum Bore Diameter
Ø
1.5015
Summary of Contents for LMC 341F
Page 32: ...28 Figure 5 1 Compressor Cross Section and Clearances ...
Page 69: ...65 SINGLE SEAL ARRANGEMENT ...
Page 70: ...66 DOUBLE SEAL ARRANGEMENT ...
Page 71: ...67 TANDEM SEAL ARRANGEMENT ...
Page 73: ...69 Phoenix Compressor Gearbox Cross Sectional View ...
Page 74: ...70 ...
Page 75: ...71 PHOENIX GEARBOX MODULE DRAWING GB01AY01 ...
Page 76: ...72 ...
Page 77: ...73 ...
Page 78: ...74 ...
Page 79: ...75 ...
Page 80: ...76 ...
Page 81: ...77 ...