REPLACEMENT OF LEVEL VIAL ASSEMBLYPage: 1 of 4
DEWALT INDUSTRIAL TOOLS
European SERVICE OPERATIONS SB NO. 137
TECHNICAL SERVICES DEPARTMENT PAGE 1 OF 4
SERVICE BULLETIN ISSUED: 19-Dec-01
REISSUED:
SUBJECT: REPLACEMENT OF VIAL ASSEMBLYWritten By: Jack Doyle
UNITS: DW073DW071, DEWALT ROTARY LASER & ALKALINE ROTARY LASER
DATE CODE RANGE: N/A
1.0PURPOSE:
To document the approved method of replacing a LEVEL VIAL Assembly on a Rotary Laser.
2.0SCOPE:
This procedure applies to all Dewalt Rotary Laser (DRL) and Alkaline Rotary Laser (ARL) units.
3.0REFERENCE:
3.1Level Vial Calibration Procedure
4.0EQUIPMENT REQUIRED:
4.1T-Wrench - 364/T 20x200
4.2Slot Screw Driver - Medium Size
4.3Level Vial Assembly Adjustment Screw Tool
4.4Torque Screw Driver – Range: 2-12 in-lbs (or equivalent)
5.0PARTS REQUIRED:
5.2Qty=1 - VIAL ASSEMBLY W/HARDWARE KIT - 200-000156-001 (429980-35 )
KIT Includes:Qty=1 - LEVEL VIAL Assembly - 200-000107-001 (B&D 429980-07)
Qty=1 - SWIVEL SCREW - 100-000277-001
Qty=1 - CONICAL WASHER - 100-000275-001
Qty=1 - CRESENT WASHER - 100-000487-001
Qty=1 - HEX SCREW - 100-000278-001
Qty=1 - VIAL HOUSING LEVEL SPRING - 100-000676-001
5.3Small Quantity of WHITE GREASE
6.0PROCEDURE: Removal of Damaged LEVEL VIAL Assembly
6.1Lift the JAMPOT Assembly off of the DRL by removing the four M4 x 101 screws.
JAMPOT AssemblyM4 x 101 Screws
Photo-1
6.2Remove the SWIVEL SCREW and the HEX (adjustment) SCREW of the damaged (or suspect) LEVEL VIAL Assembly.
LEVEL VIAL AssembliesHEX SCREW
Photo-2
SWIVEL SCREW
7.0PROCEDURE: Replacement of LEVEL VIAL Assembly
7.1In the order shown in Photo-3, attach one end of the new LEVEL VIAL Assembly to the VIAL PLATE using a SWIVEL SCREW, CONICAL WASHER, and CRESENT WASHER (with cone facing vial holder).
7.1.1The PIVOT SCREW should be threaded into the VIAL PLATE about 10-turns.
This still leaves space to add the lubricant.
7.2Carefully apply a small amount of lubricant to the surfaces of the VIAL PLATE and VIAL HOLDER that will come into contact with the CRESENT WASHER and the CONICAL WASHER. Refer to Photo-3 for details.
7.3While holding the LEVEL VIAL Assembly parallel to the VIAL PLATE, tighten the SWIVEL SCREW to 5 1 in-lbs (0.56 N-m).
7.4Apply Loctite 380 (Black Max) to the end of the SWIVEL SCREW where it protrudes from the VIAL PLATE (see Photo-3).
CAUTION:The LEVEL VIAL Assembly must not be allowed to change position at all until the Loctite has cured. Any movement before the Loctite has cured will change the torque on the SWIVEL SCREW. Delay the installation of the HEX SCREW until the Loctite has cured.
New LEVEL VIAL Assembly
VIAL PLATELoctite 380CRESENT WASHER
Photo-3
Lubricate SurfacesCONICAL WASHERSWIVEL SCREW
7.5Insert a HEX SCREW through the hole in the VIAL PLATE; place a VIAL HOUSING LEVEL SPRING over the screw (as shown in Photo-4), and lower the LEVEL VIAL Assembly onto the HEX SCREW.
7.6Turn the HEX SCREW into the LEVEL VIAL Assembly until the assembly is approximately level with the VIAL PLATE.
New LEVEL VIAL AssemblyVIAL HOUSING LEVEL SPRING
Photo-4
VIAL PLATEHEX SCREW
7.7The DRL is now ready to be calibrated. Refer to Calibration Procedure.
**Uncontrolled When Printed**
Please Reference Document Control Procedure Library For Latest Revision – Document No. 205-000001-001, Issue-01