NEIEP 820 HYDRAULIC MAINTENANCE QUESTIONS AND CORRECT ANSWERS UPDATED 2024
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Course
NEIEP 820
Institution
NEIEP 820
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...
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 ________
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