- Check all fasteners for tightness and tighten as required (refer to
maintenance checklist).
- Check for hydraulic motor and fluid leaks and repair immediately.
- When disconnecting and reconnecting hydraulic lines, make sure the
O-ring seal is in its proper seat. These can become unseated during
the re-assembly process resulting in hydraulic leaks.
LIFT ASSEMBLY
The lift wheels should remain in contact with the lower frame uprights
(See Figure 1). These will need to be periodically monitored and adjusted
to ensure they stay in contact.
Return the lift to the home position and check to be sure it is level.
Make sure the carriage entrance end is on the same plane as the tier table
discharge end. Adjust the lift set down bolts on the entrance end of the
lift if necessary. Place a 4-foot level on the angle tracks under the
clamps on the discharge end of the lift (See Figure 2).
Now check the level, and if necessary, adjust the discharge end set
down bolts to make the lift level. Also place the level on the lift
carriage across the discharge end and adjust the set down bolts if
required. Do not level the carriage plate lengthwise. The carriage is
manufactured with a slight taper and will not read
level (See Figure 3).
Tighten the jam or full nuts to keep the set down bolts in position. The
set down bolts should not have to be readjusted as long as they remain
tight.
Adjust the carriage upright wheels until they come in contact with the
upright. The wheel bolts may need to be slightly loosened. Do not over
adjust one side or the other. Tighten the adjusting bolt nut and the wheel
bolt nut when finished. The wheel should turn by hand with a slight drag.
Failure to keep the wheels in contact with the uprights will cause the
lift to rock during operation. This will chip product and cause the lift
cylinders to wear prematurely.
When a wheel cannot be adjusted in, due to the lack of slot available,
replace it. With the lift in the home position, replace one wheel at a
time making sure that wheel is touching the Cuber upright, but still turns
with a slight drag after the wheel bolt is tight.
If the lift cylinders are leaking, rebuild or replace them.
The Cuber lift chains are designed to keep the lift operating in a
level position. These should be kept tight. Do this by tightening the
adjusting bolts on 
the upper frame of the Cuber with the lift in the home
position. The chains should be plumb when finished. If they are not plumb,
move the adjusting bolt in the slot provided in the upper frame.
Grease the idler sprocket shafts located on the bottom of the lift (See
Figure 4). Put the lift on the safety pins. Grease both ends of both
shafts. Check the two sprockets and the chain and replace if necessary.
The lift carriage chains should be adjusted when they begin to sag over
the carriage area in the home position. The lift carriage chains are
tightened by removing the chain covers, located on the clamp end of the
Cuber lift. Slightly loosen the idler sprocket bolt and the adjusting bolt
jam nut. Adjust the chains equally, but do not over tighten. Now tighten
the sprocket bolt and the adjusting bolt nut. Replace the guard.
The lift carriage motor chain is tightened by first placing the lift on
the safety pins. Now, loosen the motor adjusting bolt jam nut and the
motor plate mounting bolts. Adjust the chain making sure the motor is
square with the adjoining drive sprocket. Now tighten the motor plate and
the adjusting bolt jam nut.
Grease the three drive shaft bearings. On some model Cubers, the dirt
cover and/or the drive shaft guard may need to be removed to gain access
to the grease fittings.
Inspect the 8 idler sprockets, drive sprockets, bearings, and chain,
and replace if necessary (See Figure 5). If the motor leaks, rebuild or
replace it. Replace the guard and dirt cover when finished.
CUBER CARRIAGE
Inspect the lift carriage camrols for wear. When replacing the carriage
camrols, support the carriage and replace one at a time.
Also inspect the side thrust camrols for wear, and replace if
necessary. With the carriage in the home position, the camrols should be
in contact with the carriage track. If not, use the slots provided in the
camrol mounting brackets to accomplish this.
Finally, check the chain guide for wear. When replacing
the guide, the carriage chain must be disconnected at the connecting link.
Remove the old chain guide and feed the chain through the new guide. When
reattaching the chain, make sure it did not jump the sprocket on the
carriage drive shaft. This will result in the carriage being out of
square.
GATE
Grease the gate bearings and the cylinder arms. The cylinder arms have
a bushing and they must be replaced if worn (See Figure 6).
If the gate cylinders are leaking, rebuild or replace them. The gate
cylinder mounting brackets must be kept tight. They also have bronze
bushings and will need replacing if worn.
Check the block gate arms to make sure they remain tight. The bikon
shrink rings require 30 foot pounds of torque (See Figure 7). A 6mm Allen
wrench is required to
check and tighten the rings. If a bikon ring slips in the gate arm, the
rings will have to be re-adjusted. With the gate in the down position,
level, and the cylinder in the extended position, tighten the bikon ring.
If the gate has gate positioning, check the cylinders for leaks and
rebuild or replace them.
CLAMPS
The bushings in the clamp tube guide housings should be replaced when
the clamps begin to sag. Failure to replace worn bushings will result in
damage to the clamp guide rods. To replace the bushings, remove the guide
housing from the lift side tube. The clamp should be in the home position.
Remove only one guide housing at a time. The bushing is held in place by a
snap ring. Remove the snap ring, and press the bushing out. The inner snap
ring will not have to be removed. Press the new bushing up against the
inner snap ring and re-install the outer snap ring. Bolt the guide housing
back in position. The clamp housing should be in the same position as it
was before removal.
If the clamp cylinders are leaking, rebuild or replace them.
TIER TABLE (on some models)
The tier table chain is tightened on the entrance end of the table.
Loosen the four bolts under the idler assembly and the adjusting bolt jam
nut. Tighten the adjusting bolt to tension the chain. Retighten the four
idler bolts and the jam nut. Replace the idler sprocket, and chain if
worn.
Check the motor for leaks and rebuild or replace if necessary. Check
the drive sprockets, and the chain and replace if necessary (See Figure 7).
To tighten the motor chain, loosen the over hung load adapter bolts and
the adjusting bolt jam nut. Tension the chain by using the adjusting bolt.
Make sure the motor is parallel with the drive shaft. Tighten all the
bolts and the jam nut. Grease the two bearings on the drive shaft.
The tier pusher carriage assembly has two different camrols that may
need replacing if worn. To access the camrols, unbolt the chain attachment
from the carriage and remove the carriage stop located on the entrance end
of the tier table. Also, unbolt the pusher assembly. Then remove the
carriage and replace the camrols. When reassembling the pusher, be sure
that it is level and has approximately 1 inch of clearance between the
wear plates and the channel.
The wear plates can be replaced by removing the mounting bolts located
under the tier table. Be sure to grind the new portion of the bolts that
are above the wear plates after new plate installation.
CUBE TABLE
Raise the lift and insert the safety pins. Inspect the four rollers
that have bearings, two are located on the entrance end and two on the
discharge end of the cube table. To replace the rollers, back the roller
rod retaining set
screws out. There are two set screws located on the ends
of each roller. The remaining rollers are supported by camrols.
If there is a pallet dispenser or a pallet and block dispenser attached
to the Cuber, the idler sprockets are located in the cube table frame.
Check the sprockets and the pallet dispenser chain for wear and replace if
required. The chain track can also be replaced at this time if necessary
(See Figure 8).
