Troubleshooting - H&S 1126 Operator's Manual

WARNING:
MAKE SURE THE TRUCK/TRACTOR IS SHUT OFF AND THE TRUCK/TRAILER CANNOT
MOVE BEFORE SERVICING. MAINTENANCE AND REPAIR SERVICE WORK MUST BE
PERFORMED BY A QUALIFIED SERVICE PERSON ONLY.
TROUBLE
Load will not move
Top hinge door will not
latch
Barn doors will not close

TROUBLESHOOTING

CAUSE
Truck PTO not engaged
Tractor Hydraulics not engaged
Hydraulic couplers between
truck and Big Dog are not
connected or faulty
Insufficient hydraulic flow and
or pressure
Drive chain off or broken
Drive motor faulty or worn out
Key sheared on motor drive
Drive sprockets broken
Feed left in door opening
Door bent or sprung
Top hinge pins binding
Loss of power or blown fuse
on door control box
Low truck air pressure
Feed left in door opening
Door bent or sprung
Door hinge pins binding
-21-
REMEDY
Engage truck PTO
Engage tractor hydraulics
Check hydraulic couplers to make
sure they are connected. Replace
if faulty couplers are found
Check flow and pressure in truck.
Should have minimum 35 GPM
and 3000 PSI
Replace or repair drive chain
Repair or replace faulty drive
motor
Replace sheared key on motor
Replace sprockets
Clean feed out of door opening
Straighten or replace rear door
Lubricate top hinge pins
Check for power or replace or latch
blown fuse on control box
Make sure truck has at least 110
PSI
Clean feed out of door opening
Straighten or replace rear door
Lubricate door hinge pins