Simplicity Screen

1. Model M160BS and DM
models
Disassembly and repair
While every attempt is made to ensure that the information in this manual
is correct, no liability can be accepted by the authors or publishers for loss,
damage or injury caused by any errors in, or omissions from, the information
given.

2. 2
The letter “M” indicates a two-bearing screen.
DM indicates dual mechanism.
The three number digits give the bearing size in millimeters.
The suffix “B” indicates that the assembly has oil in the tube and the
bearing is a press fit into the bearing housing.
The suffix “S” indicates the shaft bearing journals have sleeves installed.
SHAFT ASSEMBLY MODEL M160BS

3. 3
Q. How to treat a failed bearing ?
A. Nicely !!!!
Before dismounting a failed bearing, the following general rules should be observed
( as rigidly as possible ) if the bearings are to be analyzed for probable causes of failure.
Dismount a failed bearing as if you intend to preserve and / or reuse it.
In other words, avoid any further damage during dismounting if possible. Remember,
damage due to dismounting could add to the mystery and confusion.
OBSERVATION PRIOR TO DISMOUNTING
The following conditions should be surveyed prior to dismantling and the survey results
made a matter of record, since after dismounting and cleaning, some of the evidence
could be irretrievably lost. Take pictures.
Contamination
What are the overall conditions of the machine, particularly near the drive assembly ? Are
there deposits of dirt, residue, or processed material ? If it’s a wash plant, could water have
entered the bearing housing ?

4. 4
Loss of Lubricant
Was there any chance of lubricant escape ? To find this out , check the oil level and sealing areas
of all parts and any circulation lines if used for signs of lubricant leaks. Check for cracks in the shaft
housing that would allow lubricant to leak.
Running Noise
Is the bearing running noisily ? If yes, describe the nature of the noise as precisely as possible.
For example is it pulsating ? Rumbling ? Whining? Is the noise constant or intermittent ? Before
dismounting, and with control panel locked out, rock the shaft assembly by hand, this might provide
an indication of the noise type.

5. Bearing lock up on DM unit
If a bearing is locked up and the shafts are not in a normal at rest condition.
Secure both flywheels so they will not rotate when counter weights are not
on the bottom. You can then cut the cog belt and then set come a longs in
lower position and use them to allow the free shaft to settle with
counterweights to the bottom. Use caution when disassembling the shaft
with assembly with the locked bearing. Use a rigging to secure the shaft as
necessary for disassembly.

6. 6
DISMANTLE DRIVE SIDE BEARINGS:
1. Lockout the electrical controls. Clean the work area around the drive
assembly. Wash the area with water or blow the dirt and dust away with
compressed air. Follow all safety precautions and use all Personal
Protective Equipment requirements.
2. Remove the belt guard. Remove the v-belts.
3. Drain the oil from the drive assembly.

7. 7
Remove the machine sheave
575800 as follows:
Remove (4) ¾” X 5” bolts
May have to clean out dirt,
rust and use a tap on the
threads.
Sheave wt.
258 lbs. w/o
counter weights

8. 8
Secure sheave with a strap
and hoist. Thread ¾” X 5”
bolts into tapped holes,
pushing against the
tapered hub. Tighten bolts
evenly until sheave
releases from the hub.

9. 9
Remove (4) ½”x 2” bolts, washers and shaft end plate 546100

10. 10
Remove the tapered hub.
Use small chisel in slot of hub to expand and free it from shaft. Be careful not to crack hub.
Remove 1” sq. key from shaft.

11. 11
Remove shaft spacer 567400 and slinger disc 567500.

12. 12
Remove seal plate 528900
Remove (8) ½” x 2” bolts and lock washers.
The seal 558300 will be removed with seal plate.
The polished shaft spacer 529100 can be slid
from the shaft.
NOTE: If the polished surface of the spacer is ok,
not damaged and you can use it over,
wrap it in a clean rag to keep it clean and protected
from damage.
Set seal plate aside for later clean up and seal
replacement.
Punch mark bearing housing to side plate/stiffener
for correct reassembly.
NOTE: Use of guide bolts to aid in removal
of seal plate.

13. 13
Check bearing internal diameter clearance
160mm with cylindrical bore, C4 0.0087” to 0.011”
Maximum normal wear, multiply by 1.5

14. 14
FLOAT SIDE
DM models follow slides 14 through 17. (M) models
skip to slide 20.
Remove the flywheel guard and repeat the procedures
used on the drive side.

15. Changing timing belt in the field

16. (6) 9/16” rods 24” long are required
Remove the 9/16” bolts that
secure the sprocket to the
tapered hub

17. You will have to have a 13/16” socket to back-out 3 bolts securing the
sprocket to the hub
Thread the 9/16”x24” rods into the
holes where you just removed the
bolts. Thread the 9/16” bolts into the
threaded holes in the sprocket, tighten
them evenly until the sprocket is loose
from the tapered hub.

18. Now slide the sprockets and belt out onto
the rods as a unit. Push the sprockets
toward each other and work the old belt
off.. Installation is in reverse order. Be sure
the counter weights of the flywheels are to
the bottom.

19. 19
FLOAT SIDE
Remove the sprockets 945600, Remove the ½” X 2”
bolts and lock washers.
Remove the shaft end plates A07-1024800,
bushings 935100, bushing spacers A07-1154500 and
repeat the procedures used on slides 6 to 11 on the
drive side to remove the flywheels, bushings & seal
plates.

20. 20
Remove bearing housing and bearing as a cartridge unit.
Support the shaft with a soft sling and hoist.
Remove the nuts and flat washers.

21. 21
Heads of bolts are secured by plates, no need for wrench.

22. 22
Use ¾” x 12” set screws inserted into the tapped holes in bearing housing

23. 23
Tighten set screws evenly until the bearing housing has moved
from its mounting position. Do not remove it completely from the
journal. Lower the hoist and attach a shackle to one of the mounting
bolt holes, attach hoist and gently support the bearing housing and continue
removing the bearing housing assembly.

24. 24

25. 25
CARTRIDGE DISASSEMBLY
Remove and discard O-ring Remove snap ring Press bearing from housing
Bearing housing bore dimensions
13.383”
13.3838”

26. 26
Interior of shaft housing is the oil reservoir and must be cleaned of all debris.
Remove shaft for cleaning and inspection when possible and to
clean interior of shaft housing.

27. 27
ECCENTRIC SHAFT REMOVAL
When removing the shaft take note to remember the drive side from the float side. The float side bearing
journal is longer than the drive side.
Clean and inspect shaft.
FLOAT END DRIVE END
6.2948”
to
6.2963”
Journal size

28. 28
CLEAN INSIDE of SHAFT HOUSING

29. 29
Clean and inspect all the parts.
Any parts worn or damaged should be replaced.

30. 30
Shaft Journal Bushing Removal / Installation
Split full length of bushing with chisel.
Slide bushing from shaft.
Remove any bushing material
build up from the shaft with a file
and emery paper.
Heat new bushing evenly. Do not
exceed 200 F. degrees.
Heavy insulated gloves are required.
Slide bushing onto the shaft and hold tight against
log of shaft until bushing cools to shaft. Allow
the shaft to cool and then check the bushing O.D.
in several places with outside micrometers. The
journal size should be 6.2948” to 6.2963”. Remove
any high spots with emery paper.

31. 31
After replacing a bronze sleeve or using it over always try a bearing
inner race on the shaft. MUST BE LOOSE on shaft.
If you can feel any drag, note the location and use emery paper to
remove the high spot.
This is especially important on the float end of the shaft.
Using the inner race of a bearing to check for a loose fit.

32. 32
ECCENTRIC SHAFT HOUSING
If the shaft housing is damaged and requires replacement, follow these steps.
1. The shaft housing can be removed from either end of the machine. Remove the screen cloth
from above the eccentric shaft housing. Secure an overhead lifting device to the center of
the housing. NOTE: On DM units the upper shaft housing will be removed from the feed end.
The lower shaft housing from the discharge end.
2. Remove the two fasteners on each end of the shaft housing that secure it in place.
3. Remove any fasteners from the side plates that are in the line of travel for the shaft housing.
4. Clean the side plates of any material build up.
5. Lower the shaft housing to the deck below.
6. If you are removing it from the feed end, remove the back plate from the deck. Attach two
come - a - longs at the up hill end and to the shaft housing and pull the housing out evenly.
7. If you are removing it from the discharge end you will need two more come - a – longs to
safely control the removal of the housing.
8. Install the new shaft housing in reverse order.
9. The inside of the shaft housing must be clean and free of any rust and debris before
assembly of the drive.

33. 33
Install the shaft with the longer float end journal so it is on the side opposite
the drive.
It is recommended to use new grade 5 hardware on reassembly of the drive.
If a new bearing housing is required, make sure the part number on the bill
of material matches the number on the bearing housing being replaced.
Assembly

34. 34
Check the internal clearance of the bearing
160mm bearing 0.0087” to 0.011”

35. 35
Spiral lock ring fits in groove on back of bearing housing
Install Snap Ring

36. 36
Anti-fretting lubricant put in the bore of the bearing housing before installing the
bearing.
Place bearing in housing with numbers out.

37. 37
Bearing installation plate used to press the bearing into the
housing. Also used to push bearing out during a rebuild.

38. 38
Pressing the bearing into the housing with bearing numbers facing up.

39. 39
Optional Way For Bearing Installation
Shoot temperature on
bearing and housing.

40. 40
If a press is not available you can evenly heat the bearing housing to
140 - 160 degrees F. and drop the bearing straight into the bearing housing.
Have a small nylon dead blow hammer and tape measure ready in case
the bearing does not start straight. Tap the bearing on the high side, on
the outer race.
By inspection, make sure the bearing is in contact with the snap ring.

41. 41
Allow the bearing housing to cool before handling.
Cover the housings with rags
to keep them clean.
If you are transporting the
cartridge assemblies to the
jobsite, wrap them in heavy
plastic bags or shrink wrap to
keep them clean during
transport and handling.

42. 42
Install the O-ring
Starting on the drive side
Attach a shackle to the bearing housing

43. 43
Apply a coating of anti fretting paste or
Lube oil to the shaft bearing journal.
Slide the bearing assembly onto the
shaft until the housing almost touches
the side plate.
Remove the shackle and attach a soft
sling to the shaft and lift the shaft until
the mounting bolt holes are in alignment.
Be sure to align the punch marks on the
bearing housing and side plate.
Use a small pry bar and gently slide the
Cartridge onto the shaft.

44. 44
Unhook and remove the
shackle from the bearing
housing. Attach the strap to
the shaft and lift the shaft
until the bolt holes are in
alignment.

45. 45
Slide the cartridge up to
the side plate and install
the bolts.

46. 46
Install the flat washer and
nut on two bolts opposite
each other and tighten them
evenly so the bearing
housing is tight to the side
plate.
No need for loctite at this time.

47. 47
Temporarily install the outer
seal plate to keep the bearing
clean, or cover it with rags.
Move to the float side and
repeat the steps in slides
33 to 46.

48. 48
Apply loctite to threads
Apply Loctite SF 7649 primer N to the bolt threads.
Apply Loctite 271 to bolts and tighten to 1,097 ft. lbs.

49. 49
Outer Seal Plates
You can now remove the seal plates that were
temporarily installed earlier. Be sure seal
plates have been inspected and cleaned.
Remove the ¼” pipe plug and be sure
passageway is clean and unobstructed.
Install a new rubber lip seal. The spring
goes inward toward the bearing. If the
grease fitting is worn, replace it at this time.
Slide shaft spacer 529100 into the seal
and slide them both onto the shaft together.
Install (*) ½” x 2” N.C. bolts and lock
Washers. Torque to 75 ft. lbs..

50. 50
Install Slinger Disc and Shaft Spacer
Pack the slinger disc 567500 with
grease and slide it onto the shaft
up against the shaft spacer
529100. Install shaft spacer
567400 up against the slinger
disc.
Move to drive side and repeat
Above steps.

51. 51
Install Shaft Key

52. 52
Install Taper bushing hub 567700.
Install shaft end plate 546100 with
four ½” x 2” F.H bolts. Tighten bolts
to 75 ft. lbs.
On model M’s repeat slides
50 & 51 on float side. Then skip to
slide 58.
DM models, install taper bushing
567700, bushing spacer
A07-1154500.

55. Timing sprocket assemblies
To properly install the flywheels and taper bushings and
hold them in their proper location on the shaft, install the
sprocket taper bushing on the shaft so the flange is to the
outside. Install the end plate, ½” x 2” bolts and lock
washers. Tighten bolts. This draws all these parts up tight
on the shaft from the end plate to the log of the shaft.
Install the (4) ¾” x 5” bolts and lock washers. Tighten bolts
to 150 ft. lbs..
Now remove the ½” bolts securing the end plate. Remove
end plate. Remove the taper bushing. Install it correctly
with the flange end towards bushing spacer. Install the
end plate and torque bolts to 75 ft. lbs.

56. Install 9/16 all thread rod into taper bushings.
Install sprockets and cog belt

57. Remove the 9/16” x 3-1/2“ bolts from holes used for
pushing sprockets from taper bushing. Remove
threaded rods. Install 9/16” bolts into sprocket to
thread into holes on taper bushing and torque to
75 ft. lbs.

58. 58
Install Oil line
Install the oil line to the bottom
of the bearing housing and oil
sight gauge.
NOTE: Be sure the hose is cleaned
out and unobstructed.
This picture shows the breather
reduction and arrangement change
per Product Advisory – 1306.
And the TOPS 2.0 Oil Purification
System quick connect fittings installed.

59. 59
Install The Flywheel
Install flywheel 575900
onto tapered hub.
Install the four ¾” x 5”
bolts and tighten them
evenly to 150 ft. lbs.
Install the flywheel guard.
Move to drive side.

60. 60
Install machine sheave 575800 onto tapered hub with four bolts
And tighten bolts to 150 ft. lbs.
Install V-belts.
Fill drive assembly with recommended oil. See specification table
In the operation / maintenance manual.
We recommend changing breather.
If you have only one breather , on the drive side. You will need to
disconnect the upper hose on the float side while adding oil to the
drive side to prevent an air lock. Connect the hose
once the correct oil level is maintained.
Install belt guard.

61. 61
START UP AFTER REPAIR
WARNING
Alert others that the equipment is starting. Sound the horn or warning device,
wait 30 seconds and sound it again BEFORE you start the equipment. Failure to warn others may
result in severe personal injury or death.
Check for any loose hardware on the screen body.
Check for material build-up in the hopper, chutes, etc. There must be 3 inches clearance between
the vibrating body and any surrounding object.
Clear the area of any maintenance equipment and personnel. Be sure nobody is in any danger at
startup.
Start the screen. Make sure it comes up to speed in less than 10 seconds.
Record any observations about operating conditions in your report.
Remove the lock out tag and lock.