Rev. 9/25/2017
HDC-450, MANUAL
Copyright 2017 Vestil Manufacturing Corp. Page 25 of 26
hh. Binding cylinders.
ii. Air present in the hydraulic system causing
the velocity fuse to activate
lowering solenoid valve from the block because the
carriage will lower in an uncontrolled manner.
hh
.
See 4 (r).
ii
.
To unlock, pressurize the hydraulic system.
Labeling diagram:
Each unit should be labeled at all times as shown in the diagram below. Replace any label that is damaged and/or not
easily readable. Numbers below label images in the diagram correspond to the identification number of each label.
C: Label 287 (applied to upright frame member)
A: Label 220 (applied to side of pivot arm)
D: Label 206 (on base frame by oil reservoir
or inside MPU on oil tank)
Electric powered units also have the following labels applied to the modular power unit:
HDC-DC:
HDC-AC:
D: label 206 is applied to metal frame inside MPU cover
Label 295 (on MPU cover)
B: Label 232 (applied to side of pivot arm)
A
B
C
D
D: label 206 is applied to metal frame inside MPU cover
Label 248; 249; 250; or 251 electrical system
specifications
