6 Fine Adjustments
EN 32 YASKAWA Europe TOEP C710616 92D AC Drive L1000H Quick Start Guide
No down leveling. Elevator
travels through floor level
Adjustment 8 turned in too far. Filter of
adjustment 8 blocked or adjustment 8 is
damaged
Turn out adjustment 8 about 1/2 turn
Adjustment 9 turned out too far Turn in adjustment 9 to about 0.05 m/s leveling speed
Solenoid valve C: Dirt or damage between
needle DN and seat DS
Clean or change needle and seat
Inner 0-Ring FO on flange 7F is leaking Change O-Ring
Elevator sinks quickly
Elevator sinks quickly Tighten Solenoid D tube
Adjustment 8 turned in too far Turn out adjustment 8 about 1/2 turn
Elevator sinks slowly due to
inner leakage (Re-leveling)
For possible down leakage points, see
“Technical Documentation System Leakage”
Replace one seal at a time and test before proceeding to the next
point of possible leakage, if still necessary
Solenoid valve D: Dirt or damage between
needle DN and seat DS
Clean or change needle and seat
O-Ring XO of Down Valve X is leaking
Change 0-Ring
When Down Valve is compensated, replace Down Valve
O-Ring VO of Check Valve V is leaking Change Check Valve
O-Ring WO of Leveling Valve W is leaking Change O-Ring
Inner 0-Ring FO on flange 4F is leaking Change O-Ring
0-Ring HO of Manual Lowering H is leaking Replace Manual Lowering
Elevator sinks due to inner
leakage of auxiliary
equipment
HP: Hand pump is leaking
Remove suction tube and observe if hand pump leaks
Replace complete hand pump
HX/MX Adjustment 8M turned in too far Turn out adjustment 8M
HX/MX: Down valve 9M is leaking
Dirt or damage between the needle DN and
seat DS
Clean or change needle and seat
HX/MX: O-Ring XO of Down Valve YM is
leaking
Change O-Ring
HX/MX: Manual Lowering is leaking (HX/
MX)
Replace Manual Lowering
Contraction of oil during cooling especially
from 35 °C or above
Consider oil cooler if hot oil is a problem
Problem Possible Cause Corrective Action
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