Remove and Install Screed
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Disconnect batteries before performance of any service work. |
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See the Service Manual for your tractor for procedures on removing and installing the screed.
Remove a Main Tow Arm
Start By:
a. remove the cross slope beam.
1. If a grade controller is installed on the tow arm, remove the controller. (See the Service Manual for your tractor.)
2. Attach a lifting device to the tow arm and take the slack out of the lifting lines.
3. Unbolt the tow point cylinder (1) from the tow arm (2).
4. Remove the rollers (3) from the front of the tow arm (2).
5. Unbolt the tow arm (2) from the screed.
6. Unpin the screed lift cylinder (4) from the tow arm (2) and rotate the cylinder up out of the way.
7. Raise the rear of the tow arm (2) until the arm is clear of the screed tow arm (5), then move the main tow arm back from the tractor until the front of the tow arm is clear of the tractor bracket.
8. Move the tow arm away.
Install Main Tow Arm
1. Attach a lifting device to the tow arm and move the tow arm into position near the machine.
2. Raise the rear of the tow arm and slide the front of the tow arm (2) through the tractor bracket (6).
3. Bolt the rear of the main tow arm (2) to the screed tow arm (5).
4. Install the rollers (3) at the front of the tow arm (2).
5. Pin the tow point cylinder (1) to the tow arm (2).
6. If applicable, install the grade controller (see the Service Manual for your tractor).
End By:
a. install the cross slope beam.
Remove Cross Slope Beam
NOTE: This procedure requires two persons. One person at each end of the slope beam.
1. Disconnect the remote setpoint (1) and the main electrical cable (2) from the proportional slope controller (7).
2. Unbolt the bushing mount (3) from the main tow arm (4).
3. Slide the bushing mount and bushing off the beam (5).
4. Unbolt the swivel mount (6) from the main tow arm (4).
5. Slide the beam (5) toward one side or the other of the machine until the beam is clear of the screed.
Install Cross Slope Beam
NOTE: This procedure requires two persons. One person at each end of the slope beam.
1. Move the beam into position near the screed, then slide the screed inboard until the beam is in position at the rear of the tractor.
2. Bolt the swivel mount (6) to the main tow arm (4).
3. Slide the bushing mount and bushing onto the beam shaft (5).
4. Bolt the bushing mount (3) to the main tow arm (4).
5. Connect the remote setpoint (1) and the main electrical cable (2) to the proportional slope controller (7).
Remove and Install Cross Slope Beam Bushing
1. Unbolt the bushing mount (1) from the main tow arm (2).
2. Slide the mount and bushing off the beam (3).
3. Fasten the beam to the mainframe.
4. Press the bushing (4) out of the bushing mount (1).
5. Press a new bushing into the bushing mount.
6. Unfasten the slope beam and slide the bushing and mount onto the shaft.
7. Bolt the bushing mount to the main tow arm.
8. Lubricate the bushing (see the Operation and Maintenance Guide for the VIP Screed, Form No. KEBU0639).
Remove Platform And Handrails Assembly
Start By:
a. remove the crowning chain.
1. Remove the steps (1).
2. Support the fuel manifold (2) and remove the manifold mounting bolts (3). Lower the manifold to the main screed.
3. Support the vibrator motor control valve manifold (4) and remove the mounting bolts (5). Lower the manifold to the main screed.
4. Support the burner control panel (6) and remove the mounting bolts and nuts (7). Lower the panel to the main screed.
5. Unbolt and remove the handrails (8).
6. Attach a lifting device to the platform and handrails assembly (9) and take the slack out of the lifting lines.
7. Unbolt the assembly from the main screed.
8. Lift the assembly straight up until it is clear of the main screed, then move the assembly away.
Install Platform And Handrails Assembly
1. Attach a lifting device to the platform and handrails assembly (9), then move the assembly into position on the main screed.
2. Bolt the assembly to the main screed.
3. Move the outside handrails (8) into position and install the mounting bolts.
4. Move the burner control panel (6) into position and install the mounting bolts and nuts (7).
5. Move the vibrator motor control valve manifold (4) into position on its mounting bracket and install the mounting bolts (5).
6. Move the fuel manifold (2) into position on the platform support and install the mounting bolts (3).
8. Install the steps (10).
End By:
a. install the crowning chain.
Remove And Install Side Plate And Support
1. If a grade controller is installed on the support, remove the grade controller.
2. Attach a lifting device to the support (1).
3. Raise the lock (2) and remove the pin (3) from the end of the support (1).
4. Unbolt the upper blocks (4) from the end of the extension.
5. Move the side plate (5) and support (1) away.
6. If necessary, remove the upper blocks (4) from the support (1) and bolt them onto the replacement support.
7. Attach the lifting device to the replacement side plate and support.
8. Move the side plate and support into position at the end of the screed extension.
9. Bolt the upper blocks (4) to the end of the screed extension.
10. Insert the pin (3) through the block (6) and into the support (1). Lower the lock (2) over the pin.
11. If the grade controller was removed, reinstall the grade controller.
Remove And Install Front Wear Plate
1. Extend the screed extension.
2. Place blocks beneath the wear plate.
3. Remove the center plate (1) and spacer (2).
4. Remove the outermost capscrews (3).
5. Remove the upper capscrews (4). Two of the capscrews also hold the vibrator motor guard (5) in place.
6. Remove the remaining lower capscrews (6).
7. Slide the wear plate outboard until a lifting device can be attached to the plate.
8. Lift the wear plate up and outboard until the plate is clear of the screed.
9. Attach the lifting device to the replacement wear plate.
10. Move the wear plate inboard and down until the wear plate is in front of the extension wear plate.
11. Slide the wear plate inboard into position on the blocks at the front of the main screed.
12. Insert two rods (7) through the plate and into two empty holes in the main screed.
13. Loosely install the lower capscrews (6).
14. Using the rods to raise and lower the wear plate, position the lower edge of the wear plate (8) .7 to 1.3 cm (.25 to .50 inch) above the screed plate (9), then tighten the lower capscrews.
15. Install the upper capscrews (4) and the vibrator motor guard (5).
16. Install the outermost capscrews (3).
17. Remove the blocks from under the wear plate.
18. Retract the screed extension.
Remove and Install Side Wear Plates
1. Extend the screed extensions.
2. Remove the capscrews (1).
3. Move the wear plates (2) away.
4. Move the replacement wear plates into position and install the capscrews.
5. Retract the screed extensions.
Remove and Install Nose Bar
Start By:
a. remove front wear plate.
1. Raise the screed and install the screed locks (located on the tractor).
2. Support the nose bar (1) and remove the nuts and flatwashers (2).
3. Lower the nose bar away from the screed.
4. Raise the new nose bar into position on the bottom of the screed.
5. Install the flatwashers and nuts.
6. Lower the screed to the ground.
a. Install the front wear plate.
Remove And Install Bottom Wear Plate And Baffle
NOTE: After the bottom wear plate has been removed and reinstalled, the screed will have to be leveled. Since this can be a lengthy procedure, the screed wear plates should not be removed unless absolutely necessary.
Start By:
a. remove the nose bar.
1. Lower the screed to the ground.
2. Remove the steps.
3. Remove the nuts and flatwashers (1) from the front and rear of the wear plate (2).
4. If the baffle (3) is to be removed, remove the baffle bolts and lockwashers (4), (5).
5. Raise the screed 2.54 cm (1 inch) off the ground.
6. If the wear plate did not separate from the screed, pry the plate loose from the screed.
7. Raise the screed and install the screed locks.
8. Pull the wear plate from beneath the screed.
9. If the baffle was removed, move the replacement baffle (3) into position on the bottom of the screed.
10. Install the baffle center bolts and lockwashers (5).
11. Install the remaining baffle bolts, nuts, and lockwashers (4).
12. Place the replacement wear plate on a fork lift and move the wear plate into position beneath the screed.
NOTE: Different sizes and number of shims and different sizes of spacers are used with different wear plate studs. Transfer the shims and spacers from each stud as a group.
13. Remove the shims and spacers (6) and place them on the studs of the replacement wear plate.
NOTE: The next 2 steps will require the use of 3 persons, one person to operate the fork lift and two persons to position the wear plate.
14. Raise the wear plate until it is just below the screed.
15. Reposition the wear plate as necessary.
16. With all personnel cleared from the wear plate area, raise the wear plate to the screed.
17. Install the nuts and flatwashers (1) on the studs.
18. Move the nose bar into position on the bottom of the screed.
19. Install the flatwashers and nuts.
20. Install the steps.
NOTE: The wear plate must be leveled to screed at this time. The following 8 steps give the complete guidelines for leveling the wear plate to the screed.
21. Retract both screed extensions to the "In" position.
22. Lower the screed to rest on a flat surface and align each tow arm (1) with the center hole (2) in the slide bar (3). Turn both depth control screws in or out until each screw is at its null point - no load can be felt when the screw is turned either direction.
23. Raise the screed and rest it on the screed locks. Check the main screed section for any center crown that might be present by placing a 1.8 M (6 foot) straight edge (4) across the bottom of the screed at the front center (5) of the screed. Repeat the process at the rear center (6) of the screed.
24. Measure between the leading edge of the main screed wear plates (1) and the nose bar (2) at various points across the screed. If the screed plates are not within .8 mm (.03 inch) below or flush with the nose bar (3), the screed plates must be shimmed (see step 6).
25. Check the flatness of the main screed plates by placing a 1.8 M (6 foot) straightedge (1) across the front bottom (2) of the screed at one end or the other. Move the straightedge toward the other end of the screed in 61 cm (2 foot) steps until the other end is reached. The screed plates must be within 1.6 mm (.06 inch) of being flat, or the plates must be shimmed (see step 6). Repeat the procedure at the trailing edge (3) of the main screed plates and shim as necessary (see step 7). Check the flatness of the extendable screed plates in the same way.
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Loosening the wear plate nuts too much could cause the stud and nut to fail, allowing the wear plate to drop. Personal injury could result. Loosen the wear plate nuts only enough to allow shims to be removed or installed. |
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26. If the leading edge of the screed wear plates requires shimming, remove the nose bars and loosen the front nuts just enough to remove or install shims. Remove or install the shims, then tighten the wear plate nuts and reinstall the nose bars. Repeat steps 4 and 5.
27. If the trailing edge of the screed wear plates require shimming, loosen the rear nuts just enough to remove or install shims. Remove or install the shims, then tighten the wear plate nuts. Repeat steps 4 and 5.
28. With both the extendable screeds completely retracted, use the hand cranks to raise the extendable screeds above the main screed. Place a 1.8 M (6 foot) straightedge (1) against the bottom of the main screed, longitudinally about 15.2 cm (6 inches) inside one of the screed end plates. The straightedge should touch the leading and trailing edges of the main screed (2) and extend past the extendable screed (3) trailing edge. Use the hand crank to lower the extendable screed until the trailing edge touches the straightedge. The leading edge of the extendable screed should be approximately .31 cm (.125 inch) above the straightedge. Move the straightedge inward 1.07 M (3.5 ft) and repeat the procedure, except use the slope crank to adjust the height of the extendable screed.
If a slope adjustment is necessary when step 28 is performed, the procedure must be repeated. If the leading edge of the extendable screed is not .31 cm (.125 inch) above the straightedge, add shims at the trailing edge of the extendable screed to correct the measurement.
End By:
a. install the front wear plate.
Remove And Install Crowning Chain
1. Locate the connecting link and clip (1) and remove them.
2. Remove the chain (2) from around the sprockets.
3. Wrap the chain around the sprockets as shown in the drawing above.
4. Bring the two ends of the chain together and install the connecting link and clip.
Remove And Install Crowning Shafts And Sprockets
Start By:
a. remove the crowning chain.
1. Remove the bolts (1), lockwashers, and spacers from the adjustment blocks (2).
2. Remove the bolts (3), lockwashers, and spacers from the bearing housings (4).
3. Lift each shaft and sprocket (5) straight up until it is clear of the brackets and move it away.
4. Position each shaft and sprocket between the brackets.
5. Install the spacers, lockwashers, and bolts into the bearing housings.
6. Install the spacers, lockwashers, and bolts into the adjustment blocks.
End By:
a. install the crowning chain.
Remove And Install Crowning Assembly Bearings
Start By:
a. remove the crowning chain.
1. Remove the nut and washer (1) from the end of the shaft (2).
2. Remove the bolts (3), lockwashers, and spacers from the bearing housing (4).
3. Slide the bearing housing off the shaft.
4. Remove the bearings (5) from the housing.
5. Check the bearing housing and the shaft for burrs. Use crocus cloth to remove any found.
6. Install the replacement bearings into the bearing housing.
7. Slide the bearing housing onto the shaft.
8. Install the bolts, lockwashers, and spacers through the bracket and into the bearing housing.
9. Install the nut and washer on the end of the shaft.
End By:
a. install the crowning chain.