ExRobotics ExR-2 Operating Manual page 29

Reverse the above steps to replace the batteries and re-assemble the lid and panels. Ensure:
▪ Only batteries supplied by ExRobotics are used. Any other batteries will invalidate the robot's
Ex certification.
▪ The foam strips around the inside of the battery enclosure remain secure. New strips
(supplied by ExRobotics) will be installed on the batteries (Picture 8).
▪ The thermal sensors between the batteries and their gap pads are not dislodged.
▪ The bolts connecting the battery leads to the terminals are torqued to 3.6 Nm with a
calibrated torque wrench.
▪ Ty-raps are used to ensure the battery leads and other wires cannot be trapped between two
metal parts.
▪ The screws for the battery pack lid are correctly installed:
o Tighten them in the sequence shown in Picture 5.
o Tighten each screw a little before moving to the next.
o Repeat this cycle until each screw is tight.
o Check that the lid is pressed securely onto the battery enclosure so that there's a good
seal. This is essential to the integrity of this Ex enclosure.
o Torque each screw to 7 Nm with a calibrated torque wrench.
▪ The microphone cable is looped and the Ty-rap replaced (Picture 1).
ExRobotics B.V.
ExR-2 Robot
Operating Guide
This document is considered an uncontrolled copy when printed. Always ensure that you print and use a current version.
Copyright 2022 ExRobotics B.V.
Document No.: Owner:
20220412IP1
Version No.: 2 Ian Peerless
Date:
Page 28 of 39
2022-04-30