21. CHECK PISTON STROKE OF OVERDRIVE BRAKE (a) Place SST and a dial indicator onto the overdrive brake as shown in the figure. SST 09350-30020 (09350-06120) (b) Measure the stroke applying and releasing the compressed air (4 — 8 kgf/cm², 57-114 psi or 392 — 785 kPa) as shown in the figure. Piston stroke: 7M-GE 1.40 — 1.70 mm (0.0551 — 0.0669 in.) 7M-GTE 1.75 — 2.05 mm (0.0689 — 0.0807 in.) If the values are nonstandard, inspect the discs. (See page AT-80) 22. REMOVE FLANGES, PLATES AND DISCS OF OVERDRIVE BRAKE (a) Remove the snap ring. (b) Remove the flanges, plates and discs as a set. 7M-GE: Two flanges, three plates and four discs 7M-GTE: Two flanges, four plates and five discs The method of inspection, refer to AT-80. For 7M-GTE 23. CHECK PISTON ROD STROKE OF SECOND COAST BRAKE (a) Place a mark on the second coast brake piston rod as shown in the figure. Piston Rod