Graco Air-Powered Ram 253017

⚠️ WARNING: To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 9.

Air leaks around the piston rod packing nut (46)

If air leak continues, relieve the pressure and continue as follows.

Remove the four nuts (37) and lockwashers (36) holding the support beam (3) to the rod (68), and remove the support beam.

Screw the packing nut (46) out of the housing (70) and slide it up off the rod (68).

Remove the bearing (49), female gland (42), packings (47), male gland (43) and spring (44) and slide them up off the rod (68).

Inspect the parts for wear or damage. Replace as necessary.

Slide the spring (44) and male gland (43) onto the rod (68). Lubricate the packings (47) and slide them onto the rod one at a time, with the lips facing down.

Slide the female gland (42) onto the rod and push all of the packings into the housing (70). Slide the bearing (49) onto the rod.

NOTE: Some older series of Model 207279 Ram use a different piston assembly than current models. For Series A through H of Model 207279, order Repair Kit 220501. This kit is also necessary to convert the ram from air to hydraulic operation. See page 29 for parts.

⚠️ WARNING: To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 9.

Cylinder cap (67) removed and slid off the piston rod (68)?

Packing nut (46), bearing (49), and housing assembly (70) carefully slid off the rod?

Piston rod (68) carefully pulled straight up out of the cylinder (2)?

Piston and rod laid down carefully to avoid bending the rod?

Piston retainer nut (37), washer (36), piston (78), outer piston seal (54), inner piston seal (41) and spring (52) removed?

Raise the wiper plate up out of the drum. Remove the drum from the base. Wipe the fluid off the wiper plate.

Separate the wiper joint (A) and bend back the strapping (65) covering the clamp setscrew (B). Loosen the setscrew, pull the end of the strapping through the clamp (72) and remove the wiper.

Slide the strapping (65) through the new wiper (59 or 60). Slide the clamp (72) onto the new strapping and bend the strapping back approximately 3 in. (76 mm). Insert the strapping through the clamp a second time.

Install the wipers on the wiper plate. Position the wipers so that their joints (A) are 180° apart.

Grip the strapping (65) with the tool (C) as shown. With your thumb on the gripper lever (E), turn the tool handle (F) clockwise to apply tension.

Continue turning the tool handle until you see the strapping stop moving through the clamp (72). Stop turning the handle.

Tighten the setscrew (B) with a wrench (G). Pull the cutting handle (D) to cut. Remove the tool (C). Bend the strapping back over the clamp (72).

Pound the wiper all the way around with a rubber mallet until the joints (A) are butted tightly together.

Sign off on the wipers replacement