Challenger MT945C, MT955C, MT965C, MT975C Tractor Repair Workshop Manual

Manual for: AGCO Challenger MT900C Series Tractor
Format: PDF
Book Number: 79033097 & AG333730B
English
Issued Oct 2016

Challenger MT945C, MT955C, MT965C, MT975C Tractor Workshop Manual : 2949 Pages
Challenger MT945C, MT955C, MT965C, MT975C Tractor Repair Schedule Manual : 782 Pages

MT900C Series Manual TABLE OF CONTENTS

INTRODUCTION …………………………………………………………………………………………………………………………………. 01
ENGINE ……………………………………………………………………………………………………………………………………………… 02
POWERTRAIN ……………………………………………………………………………………………………………………………………. 03
FRAME ………………………………………………………………………………………………………………………………………………. 04
STEERING AND IMPLEMENT HYDRAULIC SYSTEM …………………………………………………………………………….. 05
HYDRAULIC SCHEMATICS …………………………………………………………………………………………………………………. 06
ELECTRICAL SCHEMATICS ………………………………………………………………………………………………………………… 07
AIR SYSTEM ………………………………………………………………………………………………………………………………………. 08
VIRTUAL TERMINAL …………………………………………………………………………………………………………………………… 09
CAB …………………………………………………………………………………………………………………………………………………… 10
HEATING VENTILATION AND AIR CONDITIONING ……………………………………………………………………………….. 11
Volume2
TIRE AND BALLASTING ……………………………………………………………………………………………………………………… 12
APPEARANCE GROUP ……………………………………………………………………………………………………………………….. 13
ELECTRONICS …………………………………………………………………………………………………………………………………… 14

MT945C, MT955C, MT965C, MT975C Manual Extract – Gearbox with Power Shuttle

Service Brake Operation
The hydraulic oil from transmission sump (1) flows to rear section of tri-section pump (2). The flow from pump will then travel to high pressure filter (3). The filter is a 10 micron filter. From filter oil will travel to accumulator charge valve assembly (4).

Upon start-up, accumulator charge valve assembly (4) directs oil into accumulator (5). When accumulator is completely charged the access flow will return back to transmission sump.
When operator depresses service brake pedal, service brake valve (7) allows oil from accumulator (5) to flow to front service brakes (8) and rear service brakes (9).

The pressure that is stored in accumulator (5) permits full braking power even when transmission system is not in operation. A fully charged accumulator (5) will provide four to six full service brake applications before accumulator (5) requires recharging.

NOTE: Engine must be running to recharge accumulator.
When engine is not running, no more than four to six brake applications can be expected prior to completely emptying accumulator.

Park Brake Operation of the Challenger MT945C, MT955C, MT965C, MT975C
Hydraulic oil from transmission sump (1) flows to rear section of tri-section pump (2). The flow from pump will then travel to high pressure filter (3). The filter is a 10 micron filter. From filter oil will travel to accumulator charge valve assembly (4).
Upon start-up, accumulator charge valve assembly (4) directs oil into accumulator (5). When accumulator is completely charged access flow will return back to transmission sump.

When operator releases parking brake first spool in park brake valve (10) will shift allowing oil to flow from accumulator (5) to second spool. The oil will then unseat check valve located in second spool allowing oil to flow from accumulator (5) to park brake (11).

When operator engages parking brake second spool in park brake valve (10) will shift allowing oil to flow back from park brake (11). The first spool will then allow a path for oil to return back to transmission.