Sabroe Increased torque Installation guide

Brand
Sabroe
Model
Increased torque
Type
Installation guide
Mounting instruction 08 December 2010
Mounting instruction
008544 (replaces 0171-974 - same content as original release from November 2000)
Increased torque for screws
Stronger washers for covers on reciprocating compressors
Modified gaskets for HPO and SMC/TSMC 180 reciprocating compressors
Due to increasing demands on the compressors as a result of new areas of application with higher temperature and
pressure conditions, it has proved necessary to increase the torque of the screws securing the compressor covers
to the compressor block.
The increased torque has the result that hardened and thus stronger washers must be used in order to secure that
the washers are able to withstand the bigger screw forces. The following list includes the part numbers of the washers.
However, the washers are also available in sets for each compressor type.
The gasket material for the end covers on the HPO compressors and the top and side covers for the SMC and TSMC
180 compressors has been changed to a high-pressure quality material. The thickness of the gaskets for the top,
side and end covers for the SMC and TSMC 180 compressors is changed from 1.5 mm to 1.0 mm.
The type of screws used so far will still be used as indicated in the following list, and it is recommended to check the
material quality which is stamped on the screw head. The material quality is also included in the list.
The screws must always be tightened in the order described in the Instruction Manual. First they are tightened with
an open-end wrench to approx. 40% of the indicated torque. Then they are tightened with a calibrated torque
wrench to 70% of the indicated torque and finally to the prescribed torque. Check the torque after 4 to 6 hours'
operation. The check must take place when the compressor is cold again.
Do not lubricate the gaskets and the sealing surfaces of the covers and the compressor block before mount-
ing the gaskets. New gaskets must be fitted every time the covers are dismounted.
General
All the new part numbers in the following list are available from stock.
As from 1 December 2000 all compressors delivered from the factory will be mounted and tightened as described
above.
Washers
When servicing the compressors, the previous washers must be replaced with hardened washers before the screws
are tightened to the increased torque.
Gaskets
If nothing else is indicated in the list below, the existing gasket types can be used with the increased torque.
However, for the SMC 186-188/TSMC 188, 1.0 mm gaskets must be used in connection with the increased torque.
For the SMC 4, 6, 8 - 180 (compressor type Mk1) the new high-pressure gasket must be used in connection with
the increased torque.
Johnson Controls Denmark ApS
Christian X's Vej 201 ∙ 8270 Højbjerg ∙ Denmark
Phone +45 87 36 70 00 ∙ Fax +45 87 36 70 05 ∙ www.sabroe.com
CVR No 19 05 61 71
Page 1 of 4
The following modifications are introduced:
CMO 24-26-28/TCMO 28
Top and side covers
Screws M12: Material quality 8.8
Torque increased: From 69 Nm to 85 Nm
Washers changed: From part no. 1436.036 to part no. 1436.075
End covers
Screws M14: Material quality 8.8
Torque increased: From 108 Nm to 135 Nm
Washers changed: From part no. 1436.037 to part no. 1436.076
Set of washers
CMO 24 Part no. 3184.285
CMO 26 Part no. 3184.286
CMO 28/TCMO 28 Part no. 3184.287
HPO 24-26-28
Top and side covers
Screws M12: Material quality 12.9
Torque increased: From 98 Nm to 130 Nm
Washers changed: From part no. 1436.036 to part no. 1436.075
End covers
Screws M14: Material quality 12.9
Torque increased: From 157 Nm to 200 Nm
Washers changed: From part no. 1436.037 to part no. 1436.076
Gasket for end cover
Pump end, replaced with
high-pressure gasket From part no. 2353.105 to part no. 2353.221
Set of washers
HPO 24 Part no. 3184.285
HPO 26 Part no. 3184.286
HPO 28 Part no. 3184.287
Johnson Controls Denmark ApS
Christian X's Vej 201 ∙ 8270 Højbjerg ∙ Denmark
Phone +45 87 36 70 00 ∙ Fax +45 87 36 70 05 ∙ www.sabroe.com
CVR No 19 05 61 71
Page 2 of 4
SMC 104-106-108-112-116/TSMC 108-116
Top, side and end covers
Screws M14: Material quality 8.8
Torque increased: From 108 Nm to 135 Nm
Washers changed: From part no. 1436.037 to part no. 1436.076
Set of washers
SMC 104 Part no. 3184.288
SMC 106 Part no. 3184.289
SMC 108/TSMC 108 Part no. 3184.290
SMC 112 Part no. 3184.291
SMC 116/TSMC 116 Part no. 3184.292
HPC 104-106-108
Top, side and end covers
Screws M14: Material quality 12.9
Torque increased: From 157 Nm to 200 Nm
Washers changed: From part no. 1436.037 to part no. 1436.076
Set of washers
HPC 104 Part no. 3184.288
HPC 106 Part no. 3184.289
HPC 108 Part no. 3184.290
Johnson Controls Denmark ApS
Christian X's Vej 201 ∙ 8270 Højbjerg ∙ Denmark
Phone +45 87 36 70 00 ∙ Fax +45 87 36 70 05 ∙ www.sabroe.com
CVR No 19 05 61 71
Page 3 of 4
SMC 186-188/TSMC 188
Top, side and end covers
Screws M20: Material quality 8.8
Torque increased: From 295 Nm to 420 Nm
Washers changed: From part no. 1436.039 to part no. 1436.077
Set of washers
SMC 186 Part no. 3184.294
SMC 188/TSMC 188 Part no. 3184.295
Gasket for top cover
Replaced with high-pressure gasket.
Thickness changed from 1.5 mm
to 1.0 mm From part no. 2353.156 (thickness 1.5 mm)
to part no. 2353.222 (thickness 1.0 mm)
Thickness of gasket for end cover
Changed from 1.5 mm to 1.0 mm.
Part nos. unchanged Pump end: part no. 2353.158
Shaft seal end: part no. 2353.161
SMC 4, 6, 8 - 180/TSMC 8-180 (compressor type Mk1)
Top, side and end covers
Screws M20: Material quality 8.8
Torque increased: From 295 Nm to 420 Nm
Washers changed: From part no. 1436.039 to part no. 1436.077
Set of washers
SMC 4-180 Part no. 3184.293
SMC 6-180 Part no. 3184.294
SMC 8-180/TSMC 8-180 Part no. 3184.295
Gasket for top cover
Replaced with
high-pressure gasket From part no. 2353-003 (thickness 1.0)
to part no. 2353-223 (thickness 1.0 mm)
Erhardt Nielsen
Manager, Reciprocating Compressors
Technical Support and Development
Direct no.: +45 87 36 77 20
Fax no.: +45 87 36 77 05
E-mail: [email protected]
Johnson Controls Denmark ApS
Christian X's Vej 201 ∙ 8270 Højbjerg ∙ Denmark
Phone +45 87 36 70 00 ∙ Fax +45 87 36 70 05 ∙ www.sabroe.com
CVR No 19 05 61 71
Page 4 of 4
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Sabroe Increased torque Installation guide

Brand
Sabroe
Model
Increased torque
Type
Installation guide
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