J&M 620 - Routine Maintenance; Regular Maintenance Checks; Troubleshooting; Common Issues and Solutions

14
Troubleshooting
WARNING
BE CERTAIN ALL POWER IS SHUT OFF WHEN SERVICING THE GRAIN CART
• Repack the bearings in the hub assembly once a year or as needed. Use a good quality LS EP2 severe duty, high shock load, lithium-
based grease. Also check the seal for wear and replace if necessary.
• Check the grain cart periodically for cracks in welds and for other structural damage. Have cracked welds xed immediately. Failure to
do so could result in extensive damage to the grain cart and greatly reduce the life of the cart.
• Lubricate the slides on the clean-out door.
• Check all hydraulic hoses for wear and replace as necessary.
• Make sure all tires are properly inated. See “Initial Operation and Maintenance” on page 10 in the Owner’s Manual for recommended
instructions for tire pressure. It is important that tires are inspected before and after unit loaded.
• Check PTO for wear of plates in the slip clutch. Replace if needed.
• Make sure that all guards and shields are in place before operating the grain cart.
Routine Maintenance
WARNING
MAKE SURE THAT ALL POWER IS SHUT OFF BEFORE SERVICING THE GRAIN CART. MAINTENANCE AND REPAIR SERVICE WORK TO BE
PERFORMED BY QUALIFIED SERVICE PERSONNEL ONLY.
Trouble Possible Cause Possible Remedy
Auger will not return to down
position or move from stow
position
Faulty check valve Replace check valve
Faulty lock and load solenoid Disconnect power to lock and load. If the auger is able to move, the lock and
load solenoid needs to be replaced
Upper ighting and lower ighting
are locked together
Bearing on top of upper auger ighting needs adjusting. When the auger is in
the engaged position, there must be 1/8” (0,32cm) gap between bottom of top
bearing and top of upper tube housing (See “Adjusting the Lower and Upper
Flighting” on page 15)
Feed gate open Close the feed gate
Lock and Load not operating
correctly
Make sure the limit switch on the feed gate indicator assembly is functioning
properly
Hanger bushing assembly at
the top of the lower auger
ighting is hot
Top of the hanger bushing
assembly is rubbing against the
drive dog
Loosen the two bolts and re-adjust the position of the hanger bushing assembly.
Re-tighten bolts
Remove the lower ighting assembly and place a shim between the spline
coupler and the gearbox
Excessive vibration
Auger ighting or shaft is bent Straighten or replace auger ighting
Drive shaft is bent Replace or straighten drive shaft
Grain ow stoppage
Bolt sheared in drive dog Replace bolt in drive dog. Engage upper and lower ighting at a slow rate of
speed. (Drive dogs and lugs are being engaged too fast.)
Folding auger before complete stop Upper and lower ightings are disengaging before auger comes to a complete
stop. Replace bolt in the drive dog. Never engage or disengage the upper and
lower ightings until the augers come to a complete stop.
PTO key sheared Replace key and tighten set screw
Auger tube is breaking away
from the grain cart at the
hinge area or the ram in the
hydraulic folding cylinder is
bent
Upper auger is extended in the
upright position while traveling in
the eld
Repair or place folding cylinder if necessary. Remember to lower auger to the
eld position after unloading.