Repair manual

Troubleshooting the Vibration System RD 27
wc_tx000953gb.fm 66
5.1 Determining Where to Begin
See the chart below to determine where to begin:
Electrical problems:
Hydraulic problems:
If Then
The problem is that the vibration does not
function, or functions only on one drum,
follow the sequence for electrical problems.
The problem is that the vibration system
performs poorly,
follow the sequence for hydraulic problems.
Step Task See Topic
1. Check the vibration fuse. 5.2
2. Check the vibration ON/OFF solenoid. 5.3
3. Check the neutral switch. 5.4
4. Check the neutral relay. 5.5
5. Check the vibration switch. 5.6
6. Check the drum vibration solenoid. 5.7
Step Task See Topic
1. Check the engine rpm. 5.8
2. Check the vibration vpm. 5.8
4. Check the vibration system operating pressure. 5.9
5. Check the vibration motor for binding. 5.10