Maintenance - Chamberlain HD420EVP Owner's Manual

Maintenance

Maintenance Schedule
EVERY MONTH
Manually operate door. If it is unbalanced or binding, call a trained door systems technician.
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Check to be sure door opens and closes fully. Adjust if necessary, see page 28.
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Test the safety reversal system. Adjust if necessary, see page 30.
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EVERY YEAR
Oil door rollers, bearings and hinges. The garage door opener does not require additional
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lubrication. Do not grease the door tracks.
The Remote Control Battery
To prevent possible SERIOUS INJURY or DEATH:
NEVER allow small children near batteries.
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If battery is swallowed, immediately notify doctor.
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To reduce risk of fire, explosion or chemical burn:
Replace ONLY with 3V CR2032 coin batteries.
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DO NOT recharge, disassemble, heat above 212°F (100°C) or incinerate.
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The 3V CR2032 lithium battery should produce power for up to
3 years. If the battery is low, the remote control's LED will not
flash when the button is pressed.
To replace battery, pry open the case first in the middle (1),
then at each side (2 and 3) with the visor clip. Replace the
batteries with only 3V CR2032 coin cell batteries. Insert battery
positive side up. Dispose of old batteries properly.
NOTICE: To complywith FCC and/or IndustryCanada (IC) rules, adjustment or modificationsof thistransceiver are prohibited. THERE
ARENO USER SERVICEABLEPARTS. Anychangesor modificationsnot expresslyapproved bythe partyresponsible for compliance
could void the user'sauthorityto operate the equipment.
Thisdevice complieswith Part 15 of the FCC rulesand IC RSS-210. Operation issubject to the following two conditions: (1) thisdevice
maynot cause harmfulinterference, and (2) thisdevice must accept anyinterference received, including interference that maycause
undesired operation.
ThisClassBdigitalapparatuscomplieswith Canadian ICES-003.
AVIS: Lesrèglesde la FCC et/ou d'Industrie Canada (IC) interdisent tout ajustement ou toute modification de ce récepteur. IL N'EXISTE
AUCUNEPIÈCESUSCEPTIBLED'ÊTREENTRETENUEPAR L'UTILISATEUR. Tout changement ou toute modification non
expressément approuvé par la partie responsable de la conformité peut avoir pour résultat d'annuler l'autorité de l'utilisateur de faire
fonctionner l'équipement.
Cet appareilest conforme auxdispositionsde la partie 15 du règlement de la FCC et de l'norme IC RSS-210. Son utilisation est assujettie
auxdeuxconditoinssuivantes: (1) ce dispositif ne peut causer desinterférencesnuisibles, et (2) ce dispositif doit accepter toute
interférence recue, ycomprisune interférence pouvant causer un fonctionnement non souhaité.
Cet appareilnumerique de la classe Best conforme a la norme NMB-003 du Canada.
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