
iv PCMS Operations, Safety & Maintenance V3.0 Ver-Mac 2018
Table of Contents
Table of Contents.............................................................................................................................. iv
1Overview...................................................................................................................................... 1
1.1 About your Portable Changeable Message Sign Model ......................................................... 1
1.2 Safety and Warning Information............................................................................................. 1
1.3 Maintenance.......................................................................................................................... 2
1.4 Troubleshooting..................................................................................................................... 3
1.5 About Replacement Parts...................................................................................................... 3
1.6 About Maximum Speeds........................................................................................................ 3
2Pre-towing and Work Site Inspections...................................................................................... 4
2.1 Walk-Around Inspection of PCMS Unit................................................................................... 4
2.2 Work Site Inspection (before PCMS Unit Setup).................................................................... 6
3Unit Deployment and Removal .................................................................................................. 7
3.1 Trailer Deployment................................................................................................................. 7
3.2 Setup and Adjustment of Signboard and Solar Array............................................................. 8
3.3 Ballast.................................................................................................................................... 8
3.4 Messages.............................................................................................................................. 8
3.5 Takedown of Signboard and Solar Array................................................................................ 9
3.6 Trailer Removal ..................................................................................................................... 9
4Trailer Maintenance .................................................................................................................. 10
4.1 Safety and Instructions Stickers........................................................................................... 10
4.2 Pre-Maintenance Procedure................................................................................................ 10
4.3 Trailer Structure................................................................................................................... 11
4.4 Jacks ................................................................................................................................... 11
4.5 Trailer Lights and Reflectors................................................................................................ 12
4.6 PCMS Unit Hardware and Fasteners................................................................................... 13
5Tires and Rims.......................................................................................................................... 14
5.1 Trailer Tire Wear Diagnostic Chart....................................................................................... 14
5.2 Replacement Tires and Rims............................................................................................... 15
5.3 Lug Nuts on Wheel .............................................................................................................. 15
5.4 Tire and Rim Periodic Maintenance..................................................................................... 16
6Axles and Suspension.............................................................................................................. 17
6.1 Axle Periodic Maintenance................................................................................................... 17
7Brakes and Breakaway Systems ............................................................................................. 18
7.1 Electric Brakes..................................................................................................................... 18
7.2 Hydraulic Surge Brakes....................................................................................................... 19
7.3 Manual Brake on the Trailer................................................................................................. 21
7.4 No Independent Trailer Braking System............................................................................... 21
7.5 Breakaway System.............................................................................................................. 22
7.6 Safety Chains ...................................................................................................................... 23
7.7 Brakes and Breakaway System Periodic Maintenance ........................................................ 24
8Coupler/Hitch ............................................................................................................................ 25
8.1 Pintle Hook and Lunette Ring Combination.......................................................................... 25
8.2 Ball Coupler/Hitch................................................................................................................ 25