6 Reference information
6.4. Screw joints
3HAC022032-001 Revision: E
258
© Copyri
ght
200
4-2008 ABB.
All rights reserved.
6.4. Screw joints
General
This section details how to tighten the various types of screw joints on the robot.
The instructions and torque values are valid for screw joints comprised of metallic materials
and do not apply to soft or brittle materials.
UNBRAKO screws
UNBRAKO is a special type of screw recommended by ABB for certain screw joints. It
features special surface treatment (Gleitmo as described below), and is extremely resistant to
fatigue.
Whenever used, this is specified in the instructions, and in such cases, no other type of
replacement screw is allowed! Using other types of screws will void any warranty and may
potentially cause serious damage or injury!
Gleitmo treated screws
Gleitmo is a special surface treatment to reduce the friction when tightening the screw joint.
Screws treated with Gleitmo may be reused 3-4 times before the coating disappears. After this
the screw must be discarded and replaced with a new one.
When handling screws treated with Gleitmo, protective gloves of nitrile rubber type should
be used.
Screws lubricated in other ways
Screws lubricated with Molycote 1000 should only be used when specified in the repair,
maintenance or installation procedure descriptions.
In such cases, proceed as follows:
1. Apply lubricant to the screw thread.
2. Apply lubricant between the plain washer and screw head.
3. Tighten to the torque specified in section
Tightening torque
below. Screw dimensions
of M8 or larger must be tightened with a torque wrench. Screw dimensions of M6 or
smaller may be tightened without a torque wrench if this is done by trained and
qualified personnel.
Lubricant
Art. no.
Molycote 1000 (molybdenum disulphide grease)
1171 2016-618
Continues on next page
Summary of Contents for IRB 4400 - 45
Page 2: ......
Page 8: ...Table of Contents 6 3HAC022032 001 Revision E Copyright 2004 2008 ABB All rights reserved ...
Page 296: ......
Page 297: ... Copyright 2004 2006 ABB All rights reserved Foldout 1 ...
Page 298: ... Copyright 2004 2006 ABB All rights reserved Foldout 2 ...
Page 299: ... Copyright 2004 2006 ABB All rights reserved Foldout 3 1 ...
Page 301: ... Copyright 2004 2006 ABB All rights reserved Foldout 4 ...
Page 302: ... Copyright 2004 2006 ABB All rights reserved Foldout 5 ...
Page 303: ... Copyright 2004 2006 ABB All rights reserved Foldout 6 1 ...
Page 304: ... Copyright 2004 2006 ABB All rights reserved Foldout 6 2 ...
Page 305: ... Copyright 2004 2006 ABB All rights reserved Foldout 6 3 ...
Page 307: ... Copyright 2004 2006 ABB All rights reserved Foldout 8 ...
Page 313: ... Copyright 2004 2006 ABB All rights reserved Motor Axis 1 3 Sheet 103 ...
Page 314: ... Copyright 2004 2006 ABB All rights reserved Feed Back Axis 1 3 Sheet 104 ...
Page 315: ... Copyright 2004 2006 ABB All rights reserved Motor Axis 4 6 Sheet 105 ...
Page 316: ... Copyright 2004 2006 ABB All rights reserved Feed Back Axis 4 6 Sheet 106 ...
Page 317: ... Copyright 2004 2006 ABB All rights reserved Customer Connection Sheet 107 ...
Page 318: ... Copyright 2004 2006 ABB All rights reserved Pos Indicator Axis 1 Option Sheet 108 ...
Page 321: ......