BALANCE MASTER CBM
User Manual
Thank you for purchasing the chain sling set BALANCE MASTER (CBM Type).
Please read this manual carefully before use and handle theBALANCE MASTER safely according to the instructions.
Please keep this manual in a safe place.

BALANCE MASTER CBM User Manual
Before Use
Make sure to read these instructions before using the BALANCE MASTER.
Incorrect use may result in dangerous situations such as load tipping over or falling off.
In this manual, precautions are listed under “Warning” or “Caution” which mean the following:
WARNING
Indicates that improper use may result in death or serious injury to the user.
CAUTION
Indicates that improper use of the product may result in injury to the user or in material damage.
Please note that even the items listed under “Caution” may lead to serious consequences depending on
the circumstances. All of these items contain important safety information and must be followed.

Safety Precautions
Read the safety precautions carefully to prevent accidents such as falling off loads and injuries.
Read these safety precautions carefully before use and handle the product correctly and safely.
After reading, be sure to keep them in a place where you can see them at any time.
WARNING⚫

Do not use the BALANCE MASTER if you are not thoroughly familiar with the instruction manual.

⚫

Lifting and carrying of loads should be carried out by qualified personnel only.

⚫

Use according to the correct procedures. Do not use in an incorrect way.

⚫

Persons performing work must not be under the lifted load or in the area where the load is moved⚫

Inspect the BALANCE MASTER before use and make sure it does not show any irregularities.

⚫

Never use the BALANCE MASTER if there is something wrong with it.

⚫

Do not weld or heat the BALANCE MASTER.

⚫

Do not disassemble the BALANCE MASTER.

About the BALANCE MASTER
The BALANCE MASTER automatically adjusts the chain length when lifting asymmetric loads, allowing
well-balanced lifting within a short time.
Because it is a chain system, there is no twisting or kinking as on wire ropes.

BALANCE MASTER CBM User Manual
Precautions for Use
WARNING⚫

Make sure the load to be lifted is within the working load limit (WLL) of the BALANCE MASTER.

⚫

Do not apply load greater than the working load limit (WLL).

⚫

Do not operate the crane in a way that causes shock loads.

⚫

Place the BALANCE MASTER above the center of gravity of the load to ensure stability when lifting.

⚫

Make sure that the object you attach the BALANCE MASTER to (crane hook, eye bolt, etc.) has
appropriate strength.

⚫

Do not use if the chain is twisted or tangled.

⚫

Do not drag the suspended load or pull it diagonally.

⚫

Do not allow anyone to ride on a load lifted by the BALANCE MASTER.

⚫

The center of gravity of the load must be located within the area defined by 0, A and B as shown inthe diagram below.
OX load center of gravity
BA⚫

Lift with an angle within 90°. Also, make sure that each leg angle is 60° or less.

60°or less90°or less

CAUTION⚫

Do not use the BALANCE MASTER if its label is missing or not clearly readable.

⚫

Raise and lower the crane calmly and carefully.

⚫

When load is applied, the shaft and gear will move up and down. Be careful not to pinch your fingers.
Also, make sure no objects are getting caught.

⚫

Do not use the BALANCE MASTER in the following environments:- at temperatures above 80℃ and below -30℃
- in acidic or alkalic solutions and atmospheres⚫

When not in use, store the BALANCE MASTER properly.

BALANCE MASTER CBM User ManualUse
1.

Attach the BALANCE MASTER directly on thecrane hook or by using a master link.
Make sure that the chain is properly fitted into
the groove of the wheel.

2.

Move the BALANCE MASTER above thecenter of gravity of the load and hoist thecrane. When a load of approximately 40 kgf isapplied, the wheel rotation is locked and theX load center of gravity

left and right chain lengths are fixed.

3.

If only one side is lifted, it means the center ofgravity has shifted. Stop lifting and lower theload.

X load center of gravity

4.

To adjust the balance, move the BALANCEMASTER over the center of gravity while thechain is moving freely.

X load center of gravity

5.

Raise the crane again and complete the liftingtask once the wheel has locked.

X load center of gravity

BALANCE MASTER CBM User Manual
Maintenance and InspectionWARNING⚫

Do not use the BALANCE MASTER beyond its operating limits.

Daily Inspection (Prior to Use)⚫

Make sure there are no cracks or damages at the body, chain, or hooks.

⚫

Make sure there is no looseness in the fastening parts.

⚫

Make sure there is no deformation of the load bearing pin.

⚫

Make sure there is no abnormal rattling of any parts.

Periodic Inspection⚫

Monthly inspection: Visually check the appearance and functionality, and if any abnormalities arefound, request repair or discard the product.

⚫

Annual inspection: Set a date once a year to carry out a regular inspection, and if any abnormalities
are found, request repair or discard the product.

Inspection Standard
If any of below discard criteria are reached, the product must be discarded.
Inspection Criteria

Part of BALANCE MASTER
BODY
The wheel must rotate smoothly on the shaft.

Moveability

When the operating load is applied, the gears must engage and the wheel rotationmust be locked.
The spring supporting the shaft must not be damaged or worn.

Fastening Parts
Wheel
Gear Parts
Load Bearing PinCorrosion
DeformationCracks

No looseness.
No deformation, cracks or harmful rattle at the contact points of the chain.
No damages
Do not use if the pin diameter of 33 mm is worn down by 5% or more.
Do not use if any parts are severely corroded.
Do not use if any parts are obviously deformed, stretched, or twisted.
Do not use if there are any cracks.
CHAIN

Elongation (5 links)

Do not use if elongation exceeds 5%.

Corrosion

Do not use if chain is severely corroded.

Deformation
CracksDo not use if chain links are bent or twisted.
Do not use if there are any cracks.
HOOKS

Moveability

Do not use if hook has a broken latch, spring or pin.

Corrosion

Do not use if a hook is severely corroded.

Deformation
CracksDo not use if any parts are obviously deformed, stretched, or twisted.
Do not use if there are any cracks.

BALANCE MASTER CBM User Manual
Specifications
WLL
(t)

Chain
Diameter
(mm)

Chain
Length(m)

Set
Weight(kg)

CBM-EGKNA-8

2.0

84

15.6

CBM-GBK-8

2.0

8416.2

ProductCodeHook

Dimensions (mm)ProductCodeA

B

C

DEFG

CBM-EGKNA-876

165

343

526411033

CBM-GBK-876165

343526411033* Manual issued September 2024. Product specifications are subject to change without notice to improve reliability,
function or design.

www.martec.co.jp

MARTEC K.K.
Minatojima-Nakamachi 5-1-1, Chuo-ku, Kobe 650-0046, JAPAN
Tel: +81-(0)78-302-0460 / Fax: +81-(0)78-302-1404

info@martec.co.jp