User guide

Section I - Trouble Shooting & Guidelines • Page 1
SECTION 1 - CONTENTS
TROUBLE SHOOTING & GUIDELINES
SECTION I - INTRODUCTION................................................................................. 2
GENERAL INFORMATION ..............................................................................................................................................3
ABBREVIATIONS ........................................................................................................................................................... 3
SHIPPING WEIGHTS .....................................................................................................................................................4
TROUBLE SHOOTING GUIDE ...................................................................................................... 5
HARD BRAKE PEDAL ....................................................................................................................................................5
PEDAL KICKBACK .........................................................................................................................................................5
BRAKE WILL NOT RELEASE ........................................................................................................................................5
LOW BRAKE PEDAL .....................................................................................................................................................5
SPECIAL NOTES: Common Causes of Booster Failure .............................................................................................5
TROUBLE SHOOTING POWER BRAKES ......................................................................................................................6
TROUBLE SHOOTING THE HYDRO-BOOST - Part 1 ....................................................................................................7
TROUBLE SHOOTING THE HYDRO-BOOST - Part 2 ....................................................................................................8
PART I - BLEEDING PROCEDURES FOR HYDRAULIC BRAKE BOOSTER SYSTEMS................................................9
PART II - ALL VACUUM UNITS - BLEEDING PROCEDURES ...................................................................................... 10
INSTALLATION GUIDELINES ...................................................................................................................................... 11
HYDRAULIC POWER UNIT SCHEMATICS .................................................................................................................. 12
TYPICAL FRAME MOUNTED BOOSTER INSTALLATION ........................................................................................... 12
TYPICAL FIREWALL MOUNTED BOOSTER INSTALLATION...................................................................................... 12
TYPICAL HYDRO-MAX BOOSTER INSTALLATION DIAGRAM ................................................................................... 12
FRAME MOUNTED BOOSTER TERMINOLOGY .......................................................................................................... 13
Piston Hydrovac .......................................................................................................................................................... 13
How to Install Push Rod on Firewall Mounted Boosters ......................................................................................... 13
Diaphragm Hydrovac.................................................................................................................................................. 13
DELCO MORAINE HY-POWER BRAKE SYSTEM......................................................................................................... 14
LUCAS SYSTEMS REFERENCE .................................................................................................................................. 14
FORD MEDIUM TRUCK................................................................................................................................................ 14
TYPICAL HYDRAULIC BRAKE SCHEMATIC (F-CAB L, & LN SERIES SHOWN) ........................................................ 14
DELCO MORAINE DUAL BRAKE SYSTEM.................................................................................................................. 14
MIDLAND PRESSURE CONVERTER ........................................................................................................................... 15
TYPICAL VEHICLE SYSTEM ....................................................................................................................................... 15
LUCAS SYSTEMS REFERENCE .................................................................................................................................. 15
FORD MEDIUM TRUCK................................................................................................................................................ 15
TYPICAL HYDRAULIC BRAKE SCHEMATIC ( LT, & LNT SERIES SHOWN) ............................................................... 15
TYPICAL FORD HYDRAULIC BOOSTER BRAKE SYSTEM ......................................................................................... 16
TYPICAL NAVISTAR OR GM HYDRAULIC BOOSTER BRAKE SYSTEM .................................................................... 17