Arjo CARENDO, Maintenance And Repair Manual

Page: 31 / 34

MRM Carendo Trouble shooting
31
Trouble shooting
Part Problem Cause Action
Service
procedure
Castors Bad rolling Dirt/wear Replace castors 10
Bad swivel-
ling Dirt/wear Replace castors 10
Seat Seat will
not recline
Fuse bad Check fuse F1 11
Contacts in wrong
position Check contacts on PCBA PCBA J7,
J9, J10, J11
Bad connection Check hand set and cables PCBA J:1
Motor fault Check worm gear unit;
motor 13
Microswitch fault Check microswitch lying PCBA
J11:1,2
Electronic fault Check PCBA 11
Seat will
not rise Fuse bad Check fuse F1 11
Contacts in wrong
position Check contacts on PCBA J7, J9, J10,
J11
Bad connection Check hand set and cables PCBA J:1
Motor fault Check worm gear unit;
motor 13
Microswitch fault Check microswitch sitting PCBA
J10:1,2
Electronic fault Check PCBA 11
Seat will
recline/rise
but makes
noises Bad attachment,
wear Check upper tie rod 4
Bad lubrication/
attachment, wear Check/replace bearings
seat 5
Bad lubrication/
attachment, wear Check/replace worm gear
unit 13
NOTE
Before any further actions are taken: Check that the battery is OK and fully charged. (SP2)