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Installing and removing batteries, Replacement parts, Cleaning and maintenance – Harbor Freight Tools Pittsburgh Self-leveling Laser Level 69243 User Manual

Page 5: Accuracy checking

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Page 5

For technical questions, please call 1-800-444-3353.

SKU 69243

REV 07h

Maintenance and Servicing

Procedures not specifically explained

in this manual must be performed

only by a qualified technician.

TO PREVENT SERIOUS INJURY

FROM ACCIDENTAL OPERATION:

Turn Line Buttons off before performing any

inspection, maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY

FROM TOOL FAILURE:

Do not use damaged equipment.

If abnormal noise or vibration occurs, have

the problem corrected before further use.

Installing and Removing

Batteries

1. Remove the Battery Cover (see Figure 2

on page 4) and insert two new ‘AA’ Batteries.

Follow the polarity symbols so that the positive and

negative ends of the batteries match the diagram.

2.

WARNING! Do not mix old and new batteries.

Remove batteries when storing Laser.

Replacement Parts

NOTE: Internal replacement parts are

not available for this item.

Cleaning and Maintenance

1.

BEFORE EACH USE, inspect the general

condition Laser Level. Check for loose

hardware, misalignment or binding of moving

parts, cracked or broken parts, and any other

condition that may affect its safe operation.

2.

AFTER USE, wipe external surfaces

of the tool with clean cloth.

3. Store the Laser Level indoors and

out of children’s reach.

Accuracy Checking

NOTE: Due to the complicated, sensitive

nature of these procedures, ordinarily only a

qualified technician would attempt them.

Level Beam Accuracy

1. Set up the instrument with the Tripod centered

between two walls approximately 16 ft. apart.

Ensure the Rotary Base is level.

2. Push the Pendulum Lock to the right to free

the pendulum. See Figure 1 on page 3.

3. Press both the horizontal and vertical buttons to

project a laser cross on wall A. Mark point

a

1

at

the intersection of the beams. Turn the cross line

laser 180° and repeat on wall B, marking point

b

1

at the intersection of the beams, see Figure 4.

Figure 4

4. Move the instrument straight towards wall A to

a point 2 ft. away and repeat step 2, marking

the intersections as

a

2

and

b

2

, see Figure 5.

Figure 5

5. a distance (

d

a

)=

|a

1

-a

2

|

b distance (

d

b

)=

|b

1

-b

2

|

If

|d

a

- d

b

| <1mm, the accuracy is within tolerance.

Otherwise, return the instrument to a qualified

technician for repair.