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OPERATOR’S MANUAL

Fixed stone grab (normal)

[KTMG series]

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SAFETY REGULATIONS

This operator’s manual provides relevant information on installation,

handling and maintenance of JB Attachments Multi Grapple. The warning

texts explain potential risks and how to avoid them. Observe all safety

information carefully.

DANGER

Do not attempt to install, use or perform maintenance on the attachment

before carefully reading all the information on the attachment and base

machine. Make sure there is no one in the work area when connecting or

disconnecting.

WARNING

Faulty installation can be dangerous and cause serious injury, death or

damage to the machine. Make sure that the recommended servicing and

maintenance are performed on the machine.

Limit of Liability

JB Multi Grapple is designed and manufactured to our customer’s safe use and

maximize productivity, profitability and efficient work. Never try to upgrade the

equipment’s maximum capacity by making modifications not approved by supplier.

Check the limits for tipping load before installation to minimize risk of accidents.

UNIT

SI Units (International System of Units) are used in this manual according to ISO and EN

standard.

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Product Information

KTMG series

* KTMG200 (Application Capa. 1.0 ~ 3.5 ton)

* KTMG300 (Application Capa. 3.5 ~ 8.0 ton)

* KTMG600 (Application Capa. 11.0 ~ 14.0 ton)

* KTMG800 (Application Capa. 17.0 ~ 22.0 ton)

* KTMG1000 (Application Capa 23.0 ~ 30.0 ton)

1. Product Information

1.1 Technical Data

* JB Attachments Multi Grapple is designed to be attached easily with quick coupler.

* Eco-Friendly Product : JB Attachments Multi Grapple does not use additional hydraulic

oil which can be harmful to human and environment.

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4 1109 58

2

11

6

3

9

7

HOOK

Fixed stone grab(normal type)

[KTMG series]

KTMGOOOO Fixed stone grab (normal type)

17 P-AD-MG◇◇ ADAPTOR SPS 5

16 P-TO-MG◇◇ TOOTH SPS 5

15 P-GN-1/8 GREASE NIPPLE SPS 2

14 P-RP-MG◇◇ R-PIN SPS 1

13 P-NU-△△△△ HEX. NUT STD 10

12 P-BO-△△△△ HEX. BOLT STD 5

11 MGOOOOG0701 STOPPER S45C 1

10 MGOOOOG0601 SAFETY PIN S45C 1

9 MGOOOOG0501 ANGLE PIN S45C 1

8 MGOOOOG0401 HOOK PIN S45C 1

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7 MGOOOOG0301 BRACKET PIN 2 S45C 1

6 MGOOOOG0201 BRACKET PIN 1 S45C 1

5 MGOOOOG0101 UNION PIN S45C 2

4 MGOOOO-APA ANGLE PLATE ASS`Y SM490A 1

3 MGOOOO-HA HOOK ASS`Y SM490A 1

2 MGOOOO-BBA BODY, BOTTOM ASS`Y SM490A 1

1 MGOOOO-UBA BODY, UPPER ASS`Y SM490A 1

No. Part. Number Description Material Q`ty

<NOTE> OOOO – model name. / ◇◇ – Grade / △△△△ – SPS Spec..

1.2 Specification

Grade Unfold width

(B)

Unfold width

(A)

Weight

,Kg

KTMG200. 1590 ~

1600 170 ~ 173

KTMG300 2000 ~

2050

200 ~

210

230 ~

250

KTMG600 2700 ~

2800

330 ~

340

640 ~

680

KTMG800 3250 ~

3300

380 ~

390

1010 ~

1020

KTMG1000 3800 ~

3900

400 ~

410 1412

2. Safety information

All the machine’s instructions and decals for instance warning signs must be clearly

legible at all time.

- Place the base machine and multi grapple in

a safe area and make sure there is no one at

work site.

- Risk of moving parts. Risk of personal injury.

- Read the instruction manual.

- Insert safety pin of quick coupler after installing

Multi grapple.

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- Faulty installation can be dangerous. If the pin is not inserted correctly, it may cause

broken pin.

- Wear proper fitting safety goods such as goggle, helmet,

Shoes and etc. Do not wear hem under loose-fitting.

3. Installation

3-1 Instruction

A.

Marking

Bottom body

Upper body

* Place excavator arm with a quick coupler as shown in above figure.

Mark measure of “A” on excavator arm.

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B.

* Connect the quick coupler to the multi grapple.

C.

Hook

* Pull the arm close to the cab and put the grapple on the ground.

* Position the hook at where it will be attached.

(Attention)

- Check position of the hook by moving the grapple as shown in above figure.

D

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Pre-welding

* Make a pre-welding at 3~5mm below the position of the hook.

(Attention)

- 1.0 ~ 3.0 ton Mini grapple (mark under 3mm)

- Over 5.0 ton grapple (mark under 5mm)

E

* Disconnect the grapple and weld the hook.

(Attention)

- In case the arm has ribs on it, the hook can be welded on the ribs.

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3-2 Connection of the attachment

Bucket Mounting

Grab Mounting

●

Connection of multi grapple is similar to bucket.

[Process]

A. Lift the grapple by connecting it to the welded hook.

B. Pull the arm to the cab and the hook of quick coupler will be connected to the

bracket pin of grapple.

C. Make sure the grapple is connected to the bracket pin and fix the grapple.

D. Check movement of bottom part of the grapple by using bucket cylinder.

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3-3 Angle Control

● If the angle control unit is not used as shown as in left-side figure, tooth of grapple

will be dragged and it makes the grapple hard to grab objects.

● Angle control unit allows the upper body of grapple to stretch out and it will make the

grapple easier to grab object close to the cab without moving the machine.

● Angle control unit is provided with smaller grapples under 7 tons that are often used in

smaller spaces.

● Angle control unit is available as an additional option for 13~14 tons since it is not

necessary to have it in larger working spaces.

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4. Use of grapple

* Overuse of grapple will damage not only the grapple but also the machine. When

grabbing object, do not swing fast which can break the balance of machine.

* Do not use the grapple as other purpose except grabbing. Misuse can reduce

lifespan or/and failure of structure.

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* Make sure the grapple grab object completely. Dropping object can cause a serious

accident.

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5. Maintenance

5-1 General

[Daily maintenance check]

That the grapple and pin are not cracked or damaged

Connection between the machine and grapple

Bending of grapple arms (both bottom and upper)

Security of the pins, bolts and nuts. (Double nuts required)

Any noise will cause abrasion.

5-2 Grease

Before reapply the grease, remove all foreign materials from the attachment.

Apply enough amount of lubricant

3 times a day is recommended and must be applied right before use of grapple.

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6. 6. Warranty

6.1 Policy

JB ATTACHMENTS provides following warranty. All products and spare parts are

provided with warranty term of 12 months or 2,000 operating hours from the first

user’s installing date, or 15 months from date of shipment, which is the sooner. This

policy bases on the condition of use. Product and spare parts should be operated

and maintained by this manual.

6.2 Terms

6.2.1 Domestic

Expiration of warranty term is based on the first arrival either 12 months or 2,000

operating hours.

6.2.2 Overseas

Warranty term cannot exceed 15 months from the B/L date. After 15 months,

manufacturer's warranty term will be terminated even the product is maintained as

non-use or installed 12 months.

6.3 Contents

All delivered products by JB ATTACHMENTS should be checked for defects,

damages or missing parts to assure performance upon arrival by a dealer. The

dealer shall write and report any problem within 10 workdays.

In case of transportation damage shall be claimed by the dealer directly to the

shipment and handling company. Any case of the damages shall be recorded on the

shipping documents and the claims have to be made immediately. JB

ATTACHMENTS has no responsibility for this matter.

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JB ATTACHMENTS will respond and inform to a dealer for any claim within 48

business hours.

6.4 Limit of liability

Even if within the above warranty period, following exceptions will not be covered by

JB ATTACHMENTS.

a) Defect or failure because of existing foreign materials in hydraulic system

b) Defect or failure because of contaminated hydraulic oil under poor maintenance

c) Defect or failure because of using non genuine parts

d) Defect or failure because of unauthorized modification

e) Defect or failure because of overuse or abuse

f) Defect or failure because of neglecting safety, inspection and maintenance

instructions from this manual

g) Defect or failure because of careless handling

h) Modified, erased or damaged PIN Plate

i) Non performance related changes such as color and shape

j) Operational failure due to improper procedure during the transportation

k) Following spare parts are not related to Doosan Infracore. These are

consumable commercial items.

- Various type of oil pressure seal

- Various type of connecting parts

- Oil pressure flange hose type

- Other consumption parts

l) Normal wearing parts

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6.5 Charge

6.5.1 Condition

Condition of customer free repair covers only the genuine parts replacement for

warranty period. After expiration of warranty, the replacement parts will be sent by

JB ATTACHMENTS when payment has been made. Any defects, problem or claim

must be notified to JB ATTACHMETNS within 10 work days.

6.5.2 Old parts

Please return the old part for our research and development, when JB

ATTACHMENTS requests to do so. For some reasons, the defected parts cannot be

collected by JB ATTCHMENTS than we have right to request to customers or

dealers to provide photos or other documents instead of real parts.

6.5.3 Charge

After warranty replace part, labor charge, travel expenses and other considerable or

optional work expenses will be billed. It will be added into the total payment.

All of charges, expenses and etc will be counted by only actual time and expenses.

Calculation of work hours, labor charges and expenses are based on JB

ATTACHMENTS company standard rate.

6.5.4 Transportation

Transportation of replacement (free repair) is based on standard inland trucking and

ocean by vessel, other special transportation method such as express parcel or air

freight must be approved by the JB ATTACHMETNS in advance. Also JB

ATTACHMENTS does not acknowledge the cost occurred by customer’s own

modifications or repairs.

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6.6 Succession

When change in ownership occurrence within the warranty period, than the

remaining warranty may be successes to the new owner.