In Fi rction 1 Inspect cylinder bore for smoothness A scored or 3amaged cylinder must be replaced 2 Check rubber cups for damage or swelling Replace the cups when necessary Improper brake fluid will cause the cups to swell as much as 40 per cent 3 Check fit of the piston in the cylinder bore using a feeler gauge fig 5 23 This clearance should be from 002 004 If clearance exceeds 004 re place cylinder Fig 5 23 Checking wheel cylinder Plsron FM 5 Alp 6 1 1 7 Aa 0000 MS 5 44 Wheel cylinder 1 Wth Rod Boot 5 Housing 2 ton 6 Bleeder Valve 3 isfon Cup 7 spring 4 hvton Cup Expander An embly fig 5 24 1 Moisten cylinder bore pistons and rubber cups with brake fluid before assembly 2 Place a boot over one end of cylinder 3 Insert a piston with flat side toward open end of cylinder 4 Insert a rubber cup with flat side against piston 5 Insert spring with expanders securely connected and follow with remaining parts in the reverse order of foregoing assembly procedure In tallation I FRONT WHEELS Place lock washer on anchor pin and pass pin through hole provided in wheel cylinder casting Position cylinder on flange plate and turn anchor pin into the tapped hole in the spindle support Torque pin to 60 85 foot pounds fig 5 25 and lock by peening over washer tabs fig 5 26 n Fig 3 25 Proparing to Torque Anchor Pin Fig 5 26 Anchor Pin Lock REAR WHEELS Pas anchor pin through cylinder casting and flange plate Secure by placing lock washer and nut on back inboard side of flange plate and torque to 100 125 foot pounds 2 FRONT AND REAR Replace the push rods and the brake shoe retracting springs 3 Connect the hose to the wheel cylinder 4 Install the rear brake drum and wheel 5 Install front hub and drum and adjust wheel bearings as outlined in Section 3 6 Bleed all brake lines 7 Adjust and test brakes as outlined previously in this section BRAKE DRUMS Front brake drums are the non demountable type that is they cannot be removed without removing the hub Whenever this type drum is removed wheel bearings must be adjusted as outlined in Section 3