J&M 500ST - Manual (Page 30)

30
Troubleshooting
Problems Solutions
Locking brakes
a. Replace any weak or broken springs in brakes
b. Replace any excessively worn or contaminated linings
Grabbing brakes
a. Replace any excessively worn or contaminated linings
Surging brakes
a. Trailer is not adequately grounded
Belt is not moving - Hydraulic pump is not producing
sufficient pressure or volume to belt motor.
a. Check for pinched or leaking hydraulic line
b. Allow hydraulic oil to warm up
c. Increase engine R.P.M.
d. Charge battery or plug in to tow vehicle
e. Hydraulic fluid level low
f. Hydraulic filter clogged
g. Check for proper oil viscosity
h. Check hydraulic output pressure.
i. Turn valve bank pressure bypass a 1/4 turn clockwise.
j. Repair or Replace worn out pump.
Belt is not moving - Obstructed conveyer
a. Make sure conveyor is not clogged
Belt has insufficient output speed or R.P.M. - Hydraulic
pump is not producing sufficient pressure or volume to belt
motor.
a. Check for pinched or leaking hydraulic lines.
b. Allow hydraulic oil to warm up
c. Increase engine R.P.M.
d. Hydraulic fluid level low
e. Hydraulic filter clogged
f. Check for proper oil viscosity
g. Turn valve bank pressure bypass a 1/4 turn clockwise.
h. Repair or replace worn out pump.
Belt has insufficient output speed or R.P.M. - Belt is slipping
a. Adjust belt tension and tracking (See section 2.8).
b. Check telescoping spout and conveyor for a clog.
c. Remove material from clean out door.
Belt has insufficient output speed or R.P.M. - Air in
hydraulic system.
a. Bleed air out of hydraulic system and fill reservoir
(See section 2.6).
b. Look for leaking or cracked fittings.
Belt has insufficient output speed or R.P.M. - Leak in motor,
valve body, or bypass valves.