Gradall 544B Parts Manual User Manual
Page 3
INTRODUCTION
Table of Contents
Starting Serial No. 0155299S
Original Issue 3-90
Revised 12-16-94
1-2
KG
SECTION 6 - DRIVE TRAIN (Continued)
Propeller Shaft ...................................................................................................................... 6-11
Front Axle Assembly ............................................................................................................. 6-12
Front Axle Housing ............................................................................................................... 6-13
Front Axle Differential Carrier ............................................................................................... 6-14
Front Axle Shaft & Planetary Wheel End .............................................................................. 6-15
Wheels & Tires ..................................................................................................................... 6-16
Planetary Hub ...................................................................................................................... 6-17
Front Axle Service Brakes .................................................................................................... 6-18
Front Axle Parking Brake ...................................................................................................... 6-19
SECTION 7 - CONTROLS
Forward & Reverse, Speed Selector ...................................................................................... 7-1
Boom Tilt & Sway ................................................................................................................... 7-2
Accelerator Linkage................................................................................................................ 7-3
Steering Column..................................................................................................................... 7-4
SECTION 8 - BRAKES
Hydraulics & Service Brake Lines .......................................................................................... 8-1
Hydraulics & Parking Brake Lines .......................................................................................... 8-2
Brake Pedal & Inching Linkage .............................................................................................. 8-3
Accumulator, Charging Valve & Lines .................................................................................... 8-4
SECTION 9 - HYDRAULIC CIRCUITS
Oil Supply & Pressure Lines ............................................................................................ 9-1, 9-2
Dump Circuit ................................................................................................................... 9-3, 9-4
Rear Drive ....................................................................................................................... 9-5, 9-6
Steering .................................................................................................................................. 9-7
Lift Cylinder ............................................................................................................................ 9-8
Crowd Cylinder .............................................................................................................. 9-9, 9-10
Tilt Cylinder .................................................................................................................. 9-11, 9-12
Sway Cylinder ...................................................................................................................... 9-13
Joystick Circuit ..................................................................................................................... 9-14
Outrigger Cylinder ................................................................................................................ 9-15
Stabilizer Cylinder ................................................................................................................ 9-16
SECTION 10 - HYDRAULIC COMPONENTS
Lift Cylinder .......................................................................................................................... 10-1
Crowd Cylinder ..................................................................................................................... 10-2
Crowd Extension Cylinder .................................................................................................... 10-3
Tilt Cylinder .......................................................................................................................... 10-4
Compensating Cylinder ........................................................................................................ 10-5
Sway Cylinder ...................................................................................................................... 10-6
Steering Cylinder .................................................................................................................. 10-7
Stabilizer Cylinder ................................................................................................................ 10-8