Case Magnum 7210 User Manual

CASE nir
Service
Bulletin
FILING INSTRUCTIONS
Binder: AG EQUIPMENT BINDER
Page: 1 of 26
Binder Section: AGRICULTURAL TRACTORS
Document No.: NTR SB 026 96
I
Mach Loc Code: 40000
Issued By:
PRODUCT MANAGEMENT,
RACINE, WISCONSIN, USA
Family: Magnum
Model:
7210,7220,7230,7240,7250
Supersedes:
Date Issued: 1
1/20/96
Subject: Magnum Hitch Diagnostic Codes and Service Manual Update
Background The following service bulletin will provide the dealer with more detailed troubleshooting
nformation on the Magnum 7200 series hitch system. The dealer should make a copy of this bulletin
and place in section 4002 page 45 or section 8009 of the 7200 series Service Manual.
Note: The hitch calibration procedure is found in the 7200 series Service Manual section 8009
Of Service Manual is no longer Correct.
Note: The 7100 and 8900 series tractor require a different calibration procedure.
This bulletin will cover the following items.
1.
General information
...............................................................................................
page
2
2.
General testing of the hitch system
........................................................................
Reading and erasing error codes
page
3 - 4
3.
...........................................................................
page
5
4.
Hitch performance codes (during field operations)
................................................. page 6 - 10
5. 7200 series hitch calibration procedure
................................................................. page 11 - 12
6. Hitch diagnostic codes (during calibration)
.............................................................
7.
Hitch diagnostics by problem..
page 13
- 14
........
....................................................................... page 15 - 16
8.
Hitch component function and troubleshooting
....................................................
- - page 17 - 18
9.
Hitch electrical component part numbers
............................................................... page
19
10.. Eliminating load pins and draft control from the Magnum tractor
.........................
19
1 1. Testing rockshaft and position lever potentiometers
- - page
..............................................
20
12. Bench testing rockshaft and position lever potentiometers
page
....................................
20
13. Testing wiring harness at the 37 pin, 16 pin amp connector
page
.................................page 21
- 24
14. Testing the EDC relay on tractors below serial number JJA0064978 ....................
15. Testing hitch enable relay
page 25
.....................................................................................
page
25
16. Correction to wiring schematic found in section 4002 page 27
.............................page
26
SERVICE BULLETINS DO NOT CONSTITUTE WARRANTY AUTHORIZATION TO UPDATE UNITS

Case Magnum 7210 Specifications

General

Brand	Case
Model	Magnum 7210
Category	Tractor
Language	English

Summary

Magnum Hitch Diagnostic Codes and Service Manual Update

General Information

Provides essential general information about the Magnum hitch system.

General Testing of the Hitch System

Outlines the steps for performing general tests on the tractor's hitch system.

Reading and Erasing Error Codes

Details the procedure for reading and clearing diagnostic error codes on the hitch system.

Electronic Hitch Diagnostic Codes

Normal Operation

Explains the display codes indicating normal operation of the hitch system.

Hitch Control Module Failure Modes

Describes the various failure modes of the hitch control module.

Backwards "C" in Diagnosis Display

Explains the meaning of a backward 'C' displayed during hitch diagnostics.

Electronic Hitch Performance Code

7200 Series Hitch Calibration Procedure

Hitch Diagnostic Code During Calibration

Calibration Troubleshooting Chart

Provides a chart for troubleshooting errors encountered during hitch calibration.

Hitch Diagnostics by Problem

Hitch Valve Components and Function

Hitch Valve Solenoid

Details the function and specifications of the hitch valve solenoid.

Pilot Spool

Explains the operation and function of the pilot spool within the hitch valve.

7200 Series Electronic Hitch Components

Eliminating Draft Control from the Magnum Tractor

Describes how to remove draft control functionality from the tractor.

Testing Rockshaft and Position Lever Potentiometers

Bench Testing Rockshaft & Position Lever Potentiometers

Provides procedures for bench testing hitch potentiometers.

Testing Wiring Harness at the 37 Pin Amp Connector

Testing Wiring Harness at the 16 Pin Amp Connector

Testing Wiring Harness at the EDC Relay #6

Correction to Wiring Schematic