310526U, Instructions-Parts List for Ram Supply Unit ... - Graco Inc.

ServiceThis section describes how to service the wiper.For information about servicing the ram, seeForm# 310525, 76 mm (3 in.) Air-Powered RamModule.Wiper ServiceYou have one of 3 kinds of follower plates with yourram. If you have follower plate kit 918408, follow theprocedure below to change the follower wiper. If youhave a stamped-metal follower plate kit 918409,237702, or 241081, refer to Form# 308049 for serviceinformation.To replace a worn or damaged wiper [(W) in Fig. 6]follow this procedure:1. Raise the follower plate up out of the pail. Removethe pail from the base. Wipe the fluid off the followerplate.2. Pry off the old wiper with a smooth pry bar.3. Coat the wiper with a lubricant.The lubricant should be compatible with the material tobe pumped. (Check with the material supplier for acompatible lubricant.)4. Fit a portion of the wiper into the groove on thewiper plate, then stretch the wiper around the restof the plate.5. Use a rubber mallet to pound the wiper all the wayaround the follower plate until the wiper’s ends arebutted tightly together.Wiper Service for 918408Fig. 6W310526 17