28 UniGear ZS3.2 INSTRUCTION MANUAL
e) Spring resilience checking: press the contact spring 29.3 down for
around 10 mm, the contact spring 29.3 should be rebounded freely
after loosen. Please repeat above process for 3 times.
3 Busbar
29.3 Contact spring
f) Finally using multimeter to check the contact resistance between
busbar 3 and metal tube 29.4 of busbar bushing 29. The contact
resistance must be less than 5 ohm. Please recheck the installation
correctness from step a) to step e) if thecontact resistance greater
than 5 ohm until it meet the test requirement.
3 Busbar
29 Busbar bushing
29.3 Contact spring
29.4 Metal tube
29.3 3
29.3 29.4 29 3
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