NEIEP 820 HYDRAULIC MAINTENANCE QUESTIONS AND CORRECT ANSWERS UPDATED 2024

NEIEP 820 HYDRAULIC MAINTENANCE QUESTIONS AND CORRECT ANSWERS UPDATED 2024 Drive belts One of the greatest hazards to elevator maintenance personnel exists near the_______ Between the motor and pump Line starter The ______ contactors are a major maintenance concern in the hydraulic controller Silencer A ______ is located close to the hydraulic pump unit to reduce pulsations in the oil line Lockout tagout Before perfoming maint near a belt driven hydraulic pump _____ and ________ the main line disconnect Temperature Oil ______ stabilization is a concern on hydraulic elevators Electric heater Only method of maintaining stable oil temp uses thermostatically controlled ________ Recirculating Operating a hydraulic pump and vavle in a _____ mode increases oil temp Up, bottom An elevator that has tripped low oil timer will stop its ______ run and return to the ______ landing Loss of , reversal The revers phase relay detects ______ phase or phase ________ Oil temperature The rate at which the speed changes from high speed to low speed is greatly affected by ________ Oil temperature , load _________ and _______ can greatly affect the performance of a hydraulic elevator Sequence