John Deere 3029, 4039, 4045, 6059, 6068 — PISTON CLEANING

Cyl. Block, Liners, Pistons & Rods/Piston PISTON CLEANING Clean pistons, using a commercial cleaner and a jet rinse gun or glass bead blasting machine. N CAUTION: Follow manufacturer’s instruction exactly. DO NOT ALLOW CHEMICAL TO COME INTO CONTACT WITH SKIN OR EYES ; chemical contains creosols which can be very harmful. CD,3274,G10,5 -19-18FEB92 CTM3274 (01JUL99) 10-27 Saran Liter Engines 060799 PN=88 MEASURE PISTON PIN SPECIFICATIONS Piston pin outside diameter: Small pin . . . . . . . . . . . . . . . . . . . . . . . 31.994—32.000 mm -UN-07NOV88 (1.2596—1.2598 in.) Medium pin . . . . . . . . . . . . . . . . . . . . . . . 34.92—34.93 mm (1.3748—1.3752 in.) Large pin . . . . . . . . . . . .

. . . . . . . . . . . . 41.27—41.28 mm (1.6248—1.6252 in.) Wear tolerance . . . . . . . . . . . . . . . . . . 0.013 mm (0.005 in.) T81604 Pin-to-bushing oil clearance: Small pin . . . . . . . . . . . . . . . . . . . . . . . . 0.010—0.042 mm (0.0004—0.0016 in.) Medium pin . . . . . . . . . . . . . . . . . . . . . . . 0.020—0.056 mm (0.0008—0.0022 in.) Large pin . . . . . . . . . . . . . . . . . . . . . . . . 0.007—0.043 mm (0.0003—0.0017 in.) Maximum . . . . . . . . . . . . . . . . . . . . . . .

0.10 mm (0.004 in.) If diameter is less or clearance is more than specified, replace connecting rod/piston pin assembly for emgines with small piston pin and replace pin or pin/bushing assembly for all other engines. CD,3274,G10,11 -19-04JAN99 10 27