Yale B827 User Manual

©2016 Yale Materials Handling Corp.
TABLE OF CONTENTS
General ..................................................................................................................................................................... 1
Brush and Commutator Inspection ........................................................................................................................... 2
Hydraulic Pump Motor and Traction Motor ...........................................................................................................2
Steering Pump Motor ............................................................................................................................................5
Normal Commutator Surface ................................................................................................................................5
Commutator Problems ..........................................................................................................................................5
Brush Replacement ................................................................................................................................................ 10
Stoning the Commutator .........................................................................................................................................13
Motors Repair ......................................................................................................................................................... 15
Disassemble .......................................................................................................................................................15
Traction Motor and Hydraulic Pump Motor .................................................................................................... 15
Steering Pump Motor ..................................................................................................................................... 16
Assemble ............................................................................................................................................................20
Traction Motor and Hydraulic Pump Motor .................................................................................................... 20
Steering Pump Motor ..................................................................................................................................... 22
Brush Alignment, Traction and Hydraulic Motors ................................................................................................... 25
Tests for Damaged Field and Armature ..................................................................................................................25
Test for an Open Circuit in One Armature Winding ............................................................................................25
Test for Short Circuit in One Armature Winding ................................................................................................. 25
Test for Short Circuit to Armature Shaft ............................................................................................................. 26
Test for Open Circuit in Field Coil .......................................................................................................................26
Test for Short Circuit in Field Coil .......................................................................................................................27
Test for Short Circuit Between Field and Motor Case ........................................................................................ 27
Brush Holder Test ...............................................................................................................................................27
Troubleshooting ...................................................................................................................................................... 28
This section is for the following models:
Table of Contents
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Yale B827 Specifications

General

Brand	Yale
Model	B827
Category	Lifting Systems
Language	English