Dynapac Shock Absorber KitsAll in one box

Installation instruction P/N 4812156170

Dynapac compaction equipment Ab

Box 504 Visitors address:

Telephone:+46 455 30 60 00 Org.nr. 556068-6577

SE-371 23 Karlskrona Industrivägen 2 Telefax:+46 455 30 60 30

VAT No. SE556068657701

Sweden Karlskrona

www.dynapac.com

Installation and pre-tension of shock absorbers

General installation tips

• To ensure the longest possible service life from the shock absorbers, it is absolutely necessary that

they are pre-tensioned by 2-3 mm (0.08-0.12 in.) as done when the roller leaves the factory.

• Make sure that there is sufficient pre-tension after reassembling a drum or after changing the shock

absorbers. • If there is not enough tension, adjust by fitting shims of a suitable thickness between the drum

bracket and the roller frame. For soil rollers this normally only needs to be done on the vibration side

of the drum. • 4 x shims, 1 or 1,5 mm are included in the kit.

correct pre-tension of shock aborbers

cc rollers excluding cc722

1. Insert bolts on the upper side of the fork on the drive side of the drum and tighten.

2. Insert bolts on the upper side of the fork on the vibration side of the drum; don’t tighten as shims

should be installed. 3. Check the play between the frame and the fork. The measured value should be reduced (increased

on cc224-624) with 2-3mm to achieve the correct pre-tension of the shock absorbers. This value

should then be divided with two, and shims corresponding to this value should be installed on each

side of the drum.4. Tighten the drum fork bolts to the correct torque.

5. The total pre-tension of the shock absorber is now correct, and maximum lifetime can be expected.

cA rollers and cc722 1. When reassembling a drum, jack the frame to the height of the drum brackets and tighten the bolts

on one side of the drum.

2. Loosen one end of the cross beam (CA) or one fork (CC722), install a 3 mm shim between the

frame and the cross beam (CA) or fork (CC722), tighten the bolts to the correct torque.

3. Check the play between the drum bracket and the frame on the opposite side, check the play at top

and bottom. Install shims corresponding to the average value.

4. Repeat the procedure on the other side and install shims corresponding to the measured average

value. Tighten the drum bracket bolts to correct torque.

5. Remove the 3 mm shim placed between the frame and the cross beam/fork and tighten the bolts to

correct torque. 6. The total pre-tension of the shock absorber is now correct, and maximum lifetime can be expected.

Find a suitable kit for your machine at www.dynapac.com/kitselector

Smooth operation

DynApAc shock Absorbers are designed to Dynapac high quality standards to protect equipment against damaging vibration. They are constructed with high-strength bonds and specially compounded elastomers, Dynapac shock absorbers are designed to provide high load-carrying capacity and assure long life.

Contact your local Dynapac representative for orders.

with Dynapac shock absorber kits

Benefits?• Economical• Easy to install, reduces time spent in workshop• Easy to order, everything you need in one box.

What’s included? • The correct number of shock absorbers needed • 4 x shims, 1 or 1,5 mm depending on model • Pre-tensioning instructions

General tips ◄

• Correct pre-tension of shock absorbers will double their life span• Rubber shock absorbers should not be stored for long periods• Do not change just one shock absorber at a time. A new shock absorber is much stiffer than used shock absorbers and will crack in a short time. Change at least all shock absorbers on one side of a drum at the same time• Used elements are softer than new shock absorbers and can be used as replacement shock absorbers even one at a time, as long as there are no cracks deeper than 25 mm (1 in.)

Find a suitable kit for your machine at www.dynapac.com/kitselector

General installation tips◄

Find a suitable kit for your machine at www.dynapac.com/kitselector

• To ensure the longest possible service life from the shock absorbers, it is absolutely necessary that they are pretensioned by 2-3 mm (0.08-0.12 in.) as done when the roller leaves the factory.• Make sure that there is sufficient pre-tension after reassembling a drum or after changing the shock absorbers.• If there is not enough tension, adjust by fitting shims of a suitable thickness between the drum bracket and the roller frame. On soil rollers this is normally only needed on the vibration side of the drum.• 4 x shims, 1 or 1,5 mm are included in the kit.

Correct pre-tension of shock absorbers:◄

cc rollers excluding cc7221. Insert bolts on the upper side of the fork on the drive side of the drum, tighten 2. Insert bolts on the upper side of the fork on the vibration side of the drum, don’t tighten as shims should be installed3. Check the play between the frame and the fork. The measured value should be reduced (increased on cc224-624) with 2-3mm to achieve the correct pre-tension of the shock absorbers. This value should then be divided with two, and shims corresponding to this value should be installed on each side of the drum. 4. Tighten the drum fork bolts to the correct torque.

cA rollers and cc722 1. When reassembling a drum, jack the frame to the height of the drum brackets and tighten the bolts on one side of the drum. 2. Loosen one end of the cross beam (CA) or one fork (CC722), install a 3 mm shim between the frame and the cross beam (CA) or fork (CC722), tighten the bolts to the correct torque. 3. Check the play between the drum bracket and the frame on the opposite side, check the play at top and bottom. Install shims corresponding to the average value.4. Repeat the procedure on the other side and install shims corresponding to the measured average value. Tighten the drum bracket bolts to correct torque.5. Remove the 3 mm shim placed between the frame and the cross beam/fork and tighten the bolts to correct torque.6. The total pre-tension of the shock absorber is now correct, and maximum lifetime can be expected.

Dynapac Compaction Equipment AB, Box 504, SE-371 23 Karlskrona, Sweden. Tel: +46 455 30 60 00, Fax: +46 455 30 60 30We reserve the right to change specifications without notice. Photos and illustrations do not always show standard versions of machines.

The above information is a general description only, is not guaranteed and contains no warranties of any kind.

Find your local dealer at www.dynapac.com

3492

017

5 01

- D

ecem

ber

2010

The Sustainable Way Sustainability is more than just a concept at Dynapac. It is a core value that is reflected in our corporate conduct, our manufacturing proces-ses and the quality control that goes into every piece of Dynapac equipment. Our commitment to lasting results runs throughout the life cycle of our equipment – from product development, sour-cing and manufacturing processes, to the use of equipment and service and support offerings. Most importantly, it is a promise to our customers and the communities in which we all live and work to continually develop innovative products and solutions that contribute to a strong infrastructure and a more sustainable environment. At Dynapac, a sustainable future begins today.

create lasting resultsThrough our equipment, expertise and support, we contribute to create lasting results that pays off for our customers and other stakeholders.

Focus on QualityWe strive to do things right from the beginning and prioritize right, putting our resources at work where they can create the biggest benefits and return on investment.

Take responsibilityWe shall be a responsible company in terms of social, environmental, ethical and financial aspects. As a part of the Atlas Copco Group, we share the Group´s objective to do all we can to ensure reliable, lasting results with responsible use of resources; human, natural, and capital.

qq

q