Part Summar y t r ansm ission P art s Complaints Cause Correction • • • • Clutch pressure loss around the adjuster. Sonnax spring adjusters with O-rings eliminate the clutch oil loss, improving clutch application and shift quality. Slip, soft or long extended shifts Shift quality gets worse as temperature increases Vacuum tests low at adjuster Intermittent clutch or solenoid codes Aisin AW TF-60SN, TF-80SC, TF-81SC Spring Adjuster Kit TF-60SN Lower Valve Body Part No. 15741-48K • Spring Adjusters (4) • O-Rings (6) 2 extra O-Ringed Spring Adjuster Note: This kit fits the following applications: TF-60SN: B MW 6F21WA, VW/Audi 09G, 09K, 09M units TF80SC: V olvo (AM6), Opel (AF40), Peugeot (TF80), Saab (AF40/6) & Land Rover (TF80) TF81SC: Ford (AF21), Mazda (AW6A-EL) Also Available Oversized C1 Clutch Control Valve Kit 15741-25K TF-60SN, TF-80SC & TF-81SC TF-80SC Front Casting Oversized K2 Clutch Control Valve Kit 15741-05K TF-60SN Oversized K3 Clutch Control Valve Kit 15741-08K TF-60SN TF-81SC Front Cover In Aisin AW TF-60SN, TF-80SC and TF-81SC applications the oil circuit between the clutch control valve and the adjuster is clutch apply oil. The clutch apply oil opposes the solenoid oil and slows the stroke of the valve in response to clutch fill rate. When the adjuster leaks, both clutch oil and fill rate are affected. Installing the Sonnax spring adjuster kit 15741-48K results in shorter, firmer shifts and less variance across temperature range. Oversized B1 Brake Control Valve Kit 15741-22K TF-60SN Oversized C2 Clutch Control Valve Kit 39741-05K TF-80SC & TF-81SC Features & Benefits • No special tools required • O-ring seal improves clutch application and shift quality Oversized C3 Clutch Control Valve Kit 39741-08K TF-80SC & TF-81SC Oversized B1 Band Control Valve Kit 39741-22K TF-80SC & TF-81SC You need this if… Vacuum testing over the adjuster spring fails to hold 12 in-Hg. Use Sonnax test plate to cover and seal each of the four outlined areas in each valve body to perform a vacuum test. 20 15 10 25 5 0 30 VACUUM TEST 20 15 10 25 20 15 10 25 5 0 30 VACUUM TEST 5 0 30 VACUUM TEST TF-60SN Valve Body Figure 1 TF-80SC Valve Body ©2013 Sonnax Industries, Inc. 800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Figure 2 TF-81SC Valve Body Figure 3 15741-48K 01-30-13
