Mec 3072RT - Page 5

Table of Contents
"3072RT / 3772RT / 3772RT HD" Service & Parts Manual - ANSI Specifications March 2008
Page iii
SECTION 4:
TROUBLESHOOTING .............................................................................4-1
Troubleshooting................................................................................................... 4-3
General Troubleshooting Tips ........................................................................... 4-3
Common Causes of Hydraulic System Malfunctions:....................................... 4-3
Hydraulic Pressure Adjustment Procedures..................................................... 4-9
Proportional Speed Adjustment ....................................................................... 4-12
Controls and Switches ...................................................................................... 4-14
SECTION 5:
SCHEMATICS .......................................................................................... 5-1
Hydraulic Schematic ........................................................................................... 5-2
Main Hydraulic Manifold ................................................................................... 5-4
Optional Outriggers Hydraulic Manifold ............................................................ 5-5
Electric Schematics ............................................................................................. 5-6
Circuit Board .................................................................................................... 5-8
Controls .......................................................................................................... 5-10
Engine ............................................................................................................ 5-13
Optional Outriggers ........................................................................................ 5-15
Optional Generator ......................................................................................... 5-16