Setup Instructions

Page 42 Maintenance Instructions
Maintenance Instructions
How to Change Tires
How to Change an Outside Tire
1. Keep the MH-400 attached to the tow vehicle,
remove any options, and apply the emergency brake.
2. Remove all material from the hopper.
3. Block the tires on the opposite side of the flat tire.
4. Loosen the six wheel bolts on the flat tire with a lug
wrench, but do not remove them.
5. Hoist or jack the MH-400 until the tire is off the
floor or ground. Ensure that the MH-400 is stable.
6. Remove the loose wheel bolts and remove the tire.
7. Repair the damaged tire.
8. Re-install the tire onto the MH-400 by reversing the
above steps.
Note – Ensure that the wheel is centered on the hub and
all six wheel bolts are tight. Torque in a crossover pattern
to 11 kg/m (80 ft-lb).
How to Change an Inside Tire
9. Keep the MH-400 attached to the tow vehicle,
remove any options, and apply the emergency brake.
10. Remove all material from the hopper.
11. Block the tires on the opposite side of the flat tire.
1. On the side with the tire to be changed, remove the
four 15.6 mm (⅝ in) bolts holding the walking beam
suspension’s bearings to the chassis. (Loosen but do
not remove the outside wheel nuts to give more
clearance for bearing bolts.)
2. Hoist or jack the MH-400 until the inside tire and
walking beam axle assembly can be rolled out from
underneath. Ensure that the MH-400 is stable.
3. Remove the tire.
4. Repair the damaged tire.
5. Re-install the tire onto the MH-400 by reversing the
above steps.
Note – Ensure that the wheel is centered on the hub and
all six wheel bolts and the bearing bolts are tight to 13.8
kg/m (100 ft-lb).
How to Change the MH-400 Conveyor
Belt
Read these instructions before removing the belt. If the
belt is completely destroyed, simply use a knife to cut the
belt in an undamaged area. If you intend to make a
warranty claim, the belt supplier must inspect the belt to
evaluate the damage and make recommendations for
replacement.
How to Remove the Belt
1. Remove the yellow safety covers located on the four
outer corners of the MH-400.
2. Remove the guides for the inner rubber liner from
the front and both sides of the hopper, with the metal
rails attached.
3. Remove the silicone sealer on the rear of the metal
rails (but remember to re-apply the silicone sealer
when re-installing them).
4. At both front corners, use two wrenches to hold the
end of the tensioner rod stationary.
5. Loosen the nut closest to the end of the tensioning
rod.
6. Move the inside-adjusting nut back until the
tensioning rod clears the pillow block bearing.
Note – The front idler roller is supported by two pillow
block bearings sitting in an upper and lower guide (one
set on each side of the MH-400).
7. Support the front idler roller.
8. Go to the right front corner and remove the locking
collar that holds the pillow block bearing on the
shaft. Do this by backing off the set screws and
turning the locking collar counter-clockwise. Using a
hammer and punch, tap the locking collar counter-
clockwise until it releases from the shaft.