Damper Repair Experience AAM Powertrain has over 50 years experience in the field of damper repair and provides the most comprehensive service for all makes and types of viscous dampers.(Holset Viscous Dampers) AAM Powertrain offers the following services In-house damper repair up to approx. 1500 mm diameter On-site repair worldwide for viscous dampers over 1500 mm diameter Emergency service / repair 7 days a week Emergency repair for standard dampers within 24 hours Re-conditioned dampers can be certified for Classification Societies on request. Our team of technical experts offers advise and help, and will be delighted to discuss your project. Handling Large Dampers Eyebolt holes (3 or 4) are provided in the damper flange to move damper in horizontal position such as removing from packing case. A soft sling (rope, leather, etc.) through the central bore of the damper can be used to change the damper from horizontal position to vertical. When the damper is vertical, sling guides can be fixed and wire slings passed under the damper before temporally resting the damper on wood supports. After passing wire slings around the damper between guides as shown in the drawing the soft sling may be changed to wire sling for mounting on the crankshaft flange. Selection of rope or wire sizes will be determined by damper weight and local safety regulations. 1 Damper failure resulting from lack of sample analysis – Even up to this point the bearings can be replaced using AAM's expertise 2 Conversion of Lead Bronze bearing to PTFE. 3 Machining inertia ring to remove bearing damage and to prepare a perfect surface that will ensure optimum damper performance.. 4 Case cover conversion.. 5 Re-assembly, using technically superior material which will greatly extend the operating life of the damper. 6 Fully rebuilt ready for pressure and vacuum testing. 7 The damper is now totally reconditioned and meets the latest technical specification. It is effectively, as new.. © 2021 AAM Powertrain. All Rights Reserved.

AAM Powertrain Customers FORMERLY SIMPSON / HOLSET VISCOUS DAMPERS Some of the manufacturers supplied as follows: ABC Alpha Diesel / M.A.N. / B&W / Holeby Adriadiesel Bergen Diesel (Rolls Royce) Bolnes (Wartsila) Baudouin DDC Cegielski / Zgoda / Sulzer Crepelle Cummins CAT 3618 – 3608 Daewoo (Khic) Doosan Deutz (Barreras) Fincantieri (Gmt) ( Wartsila ) Fiat Guascor H.H.M. China Q.M.D. Shenfei China D.M.D. China Hyundai (Himsen) (HHI. RTA Engines) Jenbacher Gas Engines MAK M.A.N. Group : Ruston / Paxman / Mirrlees Mitsui Nohab (Wartsila) Paxman (M.A.N.) Ruston (M.A.N.) Swd (Stork) (Wartsila) Sulzer (I.H.I) (RTA Series) STX Enpaco (Ssangyong) SKL – Spares Volvo W.H.Allen (Rolls Royce) Waukesha Dresser Wartsila Group (Wartsila S.A.C.M.) Wuxi Diesel – Engine G8300 ZC 22BH, (Damper Service Available) Uljanik / Split Diesel / 3MAJ Yanmar Typical Torsional Vibration Dampers These range in physical size from 100mm to 4000mm © 2021 AAM Powertrain. All Rights Reserved.