Manitowoc Grove GRT9165 Service Manual

6-1
Published 10-01-2020 Control # 699-00
GRT9165 SERVICE MANUAL SWING SYSTEM
6
GROVE
SECTION 6
SWING SYSTEM
SECTION CONTENTS
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Swing Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Swing Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Swing Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Swing Gearbox And Brake. . . . . . . . . . . . . . . . . . . 6-4
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Swing Bearing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Swing Bearing Bolts . . . . . . . . . . . . . . . . . . . . . . 6-10
Swivels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Hydraulic Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . 6-15
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Two Port Water Swivel . . . . . . . . . . . . . . . . . . . . . 6-16
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Electrical Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . 6-17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Swing Lock Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
360° Swing Lock Control (Positive Lock Type)
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Slew Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Removing the Slew Sensor . . . . . . . . . . . . . . . . . 6-20
Installing the Slew Sensor . . . . . . . . . . . . . . . . . . 6-20
DESCRIPTION
The purpose of the swing system is to allow the crane
superstructure to rotate atop the carrier frame. The
superstructure swing system provides full 360 degree
rotation in both directions and is equipped with free swing
capabilities. The term free swing means that the
superstructure will swing freely after the Swing joystick is
released for 6 seconds or the Swing Brake Pedal is
depressed.
Swing is activated when the Swing Enable/Disable switch on
the left armrest is pressed once. When enabled, the Swing
Enable/Disable Indicator appears on the ODM. Use the
swing controller joystick in the cab to rotate the
superstructure. When the Swing joystick is actuated,
hydraulic pressure is routed to the Swing Motors to drive the
gearboxes in the appropriate direction. As the gearbox
rotates, the pinion gears mesh with the teeth on the swing
bearing and rotates the superstructure. The rotation speed is
variable up to the maximum rotation speed of 1.1 rpm.
Braking is accomplished by depressing a Swing Brake Pedal
which is a proportionate control valve that provides a
controlled braking of the swing motion. When active, press
the Swing Enable/Disable switch to disable rotating the
superstructure.
The swing system consists of a electric remote controller, a
directional control valve, two swing drives, the swing brake
assemblies, the brake pedal and power brake valve, and a
swing brake release solenoid valve.
The crane features a pin type swing lock as standard
equipment, and can feature an optional 360 degree positive
swing lock. The 360 degree positive swing lock meshes with
the swing gear teeth at any point of rotation. The pin type
swing lock can only be engaged when the boom is centered
over the front or rear of the carrier. Both swing locks are
operated from the cab.

Manitowoc Grove GRT9165 Specifications

General

Maximum Tip Height	240.7 ft
Drive Configuration	4x4x4
Maximum Boom Length	62.5 m
Transmission	Powershift
Engine Model	Cummins QSB6.7