17
DOC06820 Rev. A
SERVICE / REPAIR MANUAL
RUNNING FLOOR II
®
DX
5.2 Problems & Potential Causes
Potential Causes
Problem
PT
O / Pump / Pressure / Flow
Ball V
alve
Control V
alve
Switching V
alve
Check V
alve
Cylinder
Unbalanced drive / Load
T
railer Overloaded
Floor Slats Jammed
Load is Jammed/Stuck/Frozen
Restrictor V
alve
System Plumbing
1
System won't move.
1
2
3
4B
5
6
7
4A
2
All cylinders move together in one direction
and then move together in the other direction
(no restaging sequence occurs).
2
1
3
All cylinders move in one direction and then
stop.
2
1
3
4
Cylinders switch direction before completing
full travel to front or rear of trailer (short
cycling).
2
1
5
System operates properly with light loads but
not heavy loads.
2
1
6
As one cylinder is restaging a second
cylinder is moving along with it.
1
7
Cylinder(s) moves slowly while the other
cylinder(s) move at normal speed.
1
8
Cylinder moves faster while other cylinders
move at normal speed.
1
2
9
During restaging, cylinders stop moving
before engaging the check valve.
2
1
3
10
During restaging, the cylinders stop moving
after engaging check valves #1 or #2.
1
2
11 All Cylinders stall at mid stroke.
1
2
* Numbered by priority of potential cause.
