Gradall 524D LoPro - Manual (Page 5)

LK 1-3
SECTION 9 — HYDRAULIC CIRCUITS
Oil Supply & Pressure Lines ......................................................................................................................... 9-1
Dump Circuit ................................................................................................................................................. 9-2
Drive Circuit (front) ......................................................................................................................................... 9-3
Drive Circuit (rear) .......................................................................................................................................... 9-4
Lift Cylinder ................................................................................................................................................... 9-5
Crowd Cylinder .............................................................................................................................................. 9-6
Tilt & Tilt Compensating Cylinder .................................................................................................................. 9-7
Steering Cylinder ............................................................................................................................................ 9-8
Joystick Circuit .............................................................................................................................................. 9-9
SECTION 10 — HYDRAULIC COMPONENTS
Lift Cylinder .................................................................................................................................................. 10-1
Crowd Cylinder ............................................................................................................................................. 10-2
Tilt Cylinder .................................................................................................................................................. 10-3
Compensating Cylinder ................................................................................................................................ 10-4
Steering Cylinder .......................................................................................................................................... 10-5
Main Hydraulic Control Valve ....................................................................................................................... 10-6
Rear Drive Motor .......................................................................................................................................... 10-7
Priority Flow Control Valve ........................................................................................................................... 10-8
Flow Divider Valve ....................................................................................................................................... 10-9
Brake Valve ................................................................................................................................................ 10-10
Solenoid Valve ........................................................................................................................................... 10-11
Inching Valve .............................................................................................................................................. 10-12
Main Hydraulic Pump ................................................................................................................................. 10-13
Hydrostatic Transmission Pump ................................................................................................................ 10-14
Front Drive Motor ....................................................................................................................................... 10-15
Hydraulic Reservoir & Filter ....................................................................................................................... 10-16
Joystick Assembly ...................................................................................................................................... 10-17
Traction Lock Valve ................................................................................................................................... 10-18
Quick Start Cylinder & Valve Assembly ..................................................................................................... 10-19
Truss Boom Winch ..................................................................................................................................... 10-20
Winch Motor ............................................................................................................................................... 10-21
Crossover Valve ......................................................................................................................................... 10-22
INTRODUCTION
Table of Contents
Starting Serial No. 0191001
Original Issue 6-01