Repair Kit for American Standard Fillvalve number 738048-0070A American Standard REF# 012018-0070A
Step 1 : Turn Off Water.
Step 2: Flush Toilet to remove water.
Step 3: Lift Lid Lester says "Use a sponge or towel to remove any water from the bottom of the tank"
Step 4: Remove the supply nut from the bottom of the toilet ballcock unit.
Step 5: Remove the Ballcock Jamb nut from the ballcock.
Step 6: Pull the old ballcock out from the top of the tank.
Step 7: Push the new ballcock shank washer over the bottom thread of the ballcock.
Step 8: Insert the new Ballcock through the hole from the top inside of the tank.
Step 9: Screw the ballcock nut from below the tank. Lester says "Make sure the float arm is in the correct postion"
Step 10: Secure the jamb nut until tight use adjustable wrench or pliers
Step 11: Attach the float and float rod if applicable and refill tube.
Step 12: Reconnect the supply line to the ballcock
Step 13: Turn on water and always check for leaks. Lester says "check the angle stop valve later as they tend to leak after they have been turned off"
Step 14: Flush toilet check for water spraying in the tank.
Use photos to ID your replacement parts. Lester Says "If you left click your mouse you can download the photo and use your photo software to size to full size to too make sure the part is what you need.