User's Manual Part 3

RBS 2109 User’s Guide
9 Maintenance
This chapter describes the maintenance procedures for the RBS 2109.
9.1 Introduction
9.1.1 Target Group
The target group for this document is maintenance personnel. To perform
maintenance work in a safe and professional way, the work must be done by
skilled personnel.
The following qualifications are minimum requirements:
• Good understanding of radio and telephone engineering
• Good understanding of engineering English
9.2 Preconditions
This section describes the preconditions that apply to the
maintenance
procedures, including tools and safety.
9.2.1 Health and Safety Information
Ensure that the chaptersPersonal Health and Safety Instructions and System
Safety Information in this manual has been read and fully understood.
9.2.2 Tools
This section presents the recommended torque settings for screws, nuts and
connectors.
Torque Values
Table 50 Screws and Nuts
Dimension Torque Nm Remark
M4 2.6 Nm +/- 0.15 Nm Normal
M4 1.7 Nm +/- 0.15 Nm Reduced torque for captive screw
M8 21 Nm +/- 1.3 Nm Earth nut
157EN/LZT 720 0090 Uen R1A 2004-09-17