Dropped Your Auto Level? What to Check Before Using It Again Malaysia
Dropped Your Auto Level? What to Check Before Using It Again Malaysia
An auto level was dropped on site.
There is no cracked housing, the telescope still focuses and the bubble looks normal.
Can you continue using it?
Not necessarily.
An auto level is a precision surveying instrument. A strong impact can affect internal adjustment even when there is little or no visible external damage.
Before using a dropped auto level for important construction or surveying work, its accuracy should be checked.
Why Can a Drop Affect Auto Level Accuracy?
Inside an automatic level are precision optical and mechanical components.
One particularly important component is the automatic compensator.
The compensator helps establish a horizontal line of sight after the instrument has been approximately levelled.
A strong impact may affect:
Optical alignment
Compensator operation
Collimation
Circular bubble adjustment
Focusing mechanism
Levelling components
Internal mechanical parts
The instrument may therefore continue to look and operate normally while producing incorrect readings.
First: Inspect the Auto Level Externally
Before setting up the instrument, check for obvious damage.
Look for:
Cracked housing
Damaged telescope
Loose components
Broken adjustment knobs
Damaged foot screws
Abnormal movement
Bent or damaged base
Loose optical components
If significant physical damage is visible, avoid forcing any controls.
Professional inspection may be necessary.
Check the Tripod Too
Sometimes the auto level is not the only equipment affected by an accident.
If the entire setup fell over, inspect the tripod.
Check:
Leg clamps
Tripod head
Hinges
Shoes
Locking mechanisms
General stability
A damaged or loose tripod can cause unstable readings even when the auto level itself is correctly adjusted.
Check the Circular Bubble
Mount the instrument securely on a stable tripod.
Level the instrument using the foot screws and observe the circular bubble.
Rotate the instrument and check whether the bubble behaves consistently.
If it moves significantly or cannot remain correctly positioned, the instrument may require adjustment.
However, a normal-looking bubble does not prove that the instrument is accurate.
Check the Compensator Behaviour
After levelling the instrument, observe whether the line of sight settles normally.
Abnormal compensator behaviour can include:
Slow settling
Unstable image
Inconsistent readings
Apparent sticking
Readings changing after light movement
If you suspect compensator damage, do not rely on the instrument for critical levelling work.
Perform an Accuracy Check
A dropped auto level should ideally be tested before returning to normal service.
A two-peg test is commonly used as a field check for collimation error.
If the test shows a significant discrepancy, professional inspection and adjustment are recommended.
Even if the field test appears acceptable, companies working under strict quality procedures may still require formal calibration before putting the instrument back into service.
Do Not Adjust Random Screws Yourself
When users discover an accuracy problem, there can be a temptation to start turning adjustment screws.
This can make the problem worse.
Unless you understand the correct adjustment procedure for the specific instrument, avoid unnecessary internal adjustment.
An incorrect adjustment can change the instrument's geometry and make proper calibration more difficult.
Can a Dropped Auto Level Be Repaired?
Often, yes.
A dropped auto level does not automatically need replacement.
Depending on the damage, the solution may involve:
Inspection → Adjustment → Calibration
or, when a component has been damaged:
Inspection → Repair → Adjustment → Calibration → Verification
The correct approach depends on the condition of the instrument.
When Is Replacement Better?
Repair may not always be economical.
Replacement should be considered when:
Damage is extensive
Important components are unavailable
Repair costs become too high
The instrument is very old
The same unit repeatedly develops problems
Downtime is affecting operations
A newer model offers worthwhile improvements
For professional instruments in good overall condition, inspection should normally come before deciding to replace them.
What If the Auto Level Is Needed Urgently?
Construction projects cannot always stop because one instrument has been damaged.
Companies that depend heavily on surveying equipment should consider maintaining:
A backup auto level
A spare tripod
A spare levelling staff
Updated calibration records
A reliable local service contact
This reduces downtime when equipment is damaged unexpectedly.
Prevent Future Auto Level Damage
Many surveying instrument problems can be reduced with proper handling.
After use:
Return the instrument to its carrying case
Do not transport it mounted on the tripod
Avoid throwing the case into a vehicle
Keep the case properly secured during transportation
Store the instrument in a suitable environment
Inspect the tripod regularly
Surveying instruments are designed for field use, but they remain precision equipment.
Auto Level Inspection, Calibration & Repair Malaysia
If your auto level has been dropped, do not judge its condition only by its external appearance.
MTM Precision can inspect the instrument and advise whether it requires:
Accuracy Check → Adjustment → Calibration → Repair → Replacement
MTM Precision also supplies professional auto levels and surveying accessories for contractors, engineers and surveyors in Malaysia.
Customers looking to replace or upgrade an existing unit can also compare suitable Topcon auto level options based on their application.
Complete Surveying Equipment Support
MTM Precision supports customers beyond the initial equipment purchase.
Our surveying support covers the equipment lifecycle:
Selection → Supply → Accessories → Use → Accuracy Problem → Calibration → Repair → Replacement → Upgrade
This allows customers to keep surveying equipment productive throughout its working life.
MTM Precision Sdn Bhd
Surveying Equipment • Calibration • Repair • Accessories
Website: www.mtmpre.com.my
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Showroom & Service Centre
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia.
Aug 20,2026