Crown CT44022, Original Instructions Manual

14

English

Plumbing point precision test (see fig. 3, 8)

•

Position the appliance at height of 1,5 m from the floor.

•

Turn on the appliance as described above (laser 

head self-levelling on, see fig. 3.1). Turn on horizontal 

and vertical laser beams, mark the position of the 

plumbing point (see fig. 8.1).

•

Turn the appliance body to 90°, 180°, 270°, 360°, 

and mark the position of the plumbing point in each 

of  the  listed  positions  (see  fig.  8.2).  These  marks 

shall match or lie within a circle with a diameter not 

exceeding 1 mm (see fig. 8.3).

Upper lines intersection precision test (see fig. 3, 9)

[CT44023, CT44024]

•

Position the appliance onto an even surface 2,5 m 

apart from the ceiling�

•

Turn on the appliance as described above (laser 

head self-levelling on, see fig. 3.1). Turn on all vertical 

laser beams and mark the intersection point on the 

ceiling (see fig. 9.1).

•

Turn the appliance body to 90°, 180°, 270°, 360°, 

and mark the intersection point in each of the listed 

positions (see fig. 9.2). These marks shall match or lie 

within a circle with a diameter not exceeding 0,5 mm 

(see fig. 9.3).

Vertical laser beams perpendicularity test (see fig. 10)

[CT44023, CT44024]

•

Position the appliance onto an even horizontal 

surface approximately 2,5 m apart from the walls (see 

fig. 10, showing the schematic top view).

•

Turn on the appliance as described above (laser head 

self-levelling on, see fig. 3.1). Turn on two perpendicular 

vertical laser beams ("L1" and "L2") and mark their 

position on the walls (lines "d1" and "d2") (see fig. 10.1).

•

Turn the appliance body to 90° from the original 

position, align laser beam "L1" with line "d2" and mark 

the position of the beam "L2" with line "d3" (see fig. 10.2).

•

Turn the appliance body to 180° from the original 

position, align laser beam "L1" with line "d3" and mark 

the position of the beam "L2" with line "d4" (see fig. 10.3).

•

Turn the appliance body to 270° from the original 

position, align laser beam "L1" with line "d3" and mark 

the position of the beam "L2" with line "d5" (see fig. 10.4).

•

Measure the distance ("x4") between the lines "d1" 

and "d5" - it shall not exceed half of the variance value 

(1 mm), specified in the technical data sheet.

General recommendation (see fig. 11)

•

Before starting work ensure that all measurements 

will be carried out under suitable conditions (see 

section "Factors, influencing appliance precision").

•

Place the appliance correctly with reference to 

bubble level 

8

 indications� If necessary, adjust the 

appliance position with adjustable legs 

10

� Negligible 

horizontal misalignment can be compensated with the 

laser head self-levelling system (not exceeding ±3°)�

•

Put on the glasses 

15

 to improve laser beam visibili-

ty� 

Attention: glasses 15 are not protective glasses. 

It is strictly prohibited to look at the laser beam 

through these glasses - it may cause eye retina 

damage.

•

Turn on the appliance as described above� If you 

turn on the appliance with a laser head self-levelling 

on and hear an acoustic signal, and the laser beams 

blink, you have to re-position the appliance, otherwise 

the measurement results will be incorrect�

•

You can mark inclined lines when the laser head 

self-levelling  is  off  (see  fig.  11). 

Attention! Do not 

mark horizontal and vertical beams in this mode - 

their position is incorrect.

•

You can turn the appliance body manually (quickly) 

of using swivel bolts 

11

 (slowly, but precisely)�

•

After  finishing  work  turn  off  the  appliance  as 

described above (lock 

9

 shall be in the position as 

shown in fig. 3.2 and laser beams must be off).

•

It is recommended to put the appliance for long-term 

storage and transportation into case 

16

� Ensure that 

there are no moisture drops on the appliance elements 

(if necessary, wipe with a soft cloth), after that put the 

appliance into case 

16

� 

Maintenance / preventive measures

Cleaning the appliance

•

Keep the appliance clean� Do not use caustic sub-

stances or solvents�

•

Emitter windows shall be cleaned with a soft cloth� 

Do not use sharp objects or corrosive agents for this 

purpose�

After-sales service and application service

Our after-sales service responds to your questions 

concerning maintenance and repair of your product as 

well as spare parts� Information about service centers, 

parts diagrams and information about spare parts can 

also be found under:

 www.crown-tools.com

�

Transportation

•

Categorically not to drop any mechanical impact on 

the packaging during transport�

•

When unloading / loading is not allowed to use any 

kind of technology that works on the principle of clamp-

ing packaging�

Environmental protection

Recycle raw materials instead of dispos-

ing as waste.

Appliance, accessories and packaging 

should be sorted for environment-friendly 

recycling�

The plastic components are labelled for categorized 

recycling� 

These instructions are printed on recycled paper man-

ufactured without chlorine�

The manufacturer reserves the possibility to introduce changes.