Gast 72R Repair Kit for 3/4 hp Piston Compressor Rebuild Service Kit SRC75K K705
This listing is for the Top End Rebuild Kit Service and Maintenance kit for the 3/4hp Gast brand models starting with model # 72R, and also used in EasyPro SRC75 pumps, Airmax 72R G75 RP50 pumps, and others. 72R142-P001B-D300X, 72R142-P001B-D301X, 72R645-V114-D303X, 72R655-P112-D304X, 72R655-V114-D304X, etc.
This will restore your compressor to working pressures. This is a brand-NEW kit complete with screws and valve plates. A 2 Valve Plates with Pre-Installed Leaf Valves. F 8 Screws (4 have the Torx Head). Remove the air filter from the valve plate.
Be sure to take note. Of where the air filter is installed on the. Valve plate in relation to the capacitor on. Using a 1/4 Allen wrench, remove the two.
1/4 pipe plugs, noting their location on the. Using a 5/32 Allen wrench, remove the two. Screws holding down the manifold. Remove and save the two spacers underneath.
Remove the brass 90 degree fitting from the. Valve plate using a 1/2 wrench. Fitting removal, the pinch clamp and flex tube. Can be removed from the brass barb.Use a 5/32 Allen wrench to remove the. Remaining six screws on the top of the head. Separate the heads from the head assembly. Take note of the positions of. The leaf valves in relation to the capacitor.
This will be important when reinstalling the. Separate the old valve plate from the. Remove the tube o-rings with a small pick. Tool and install the new ones from the. Then firmly place the new. Valve plate onto the valve tubes. Repeat steps 8 and 9 for the second.Valve plate and set the valve plate. Depending on which screws are installed on.
Your unit, use either a T20 Torx wrench or 1/8. Allen wrench to remove the two set screws. On the piston retainer plate for each cylinder. Remove and discard the worn cylinder.
On top of one of the new piston cups making. Sure that the lip of the piston cup faces up. Place the retainer plate and piston cup onto. Flip over to ensure the. Piston cup is evenly aligned. Place the cylinder sleeve into the grooves. On top of the compressor body and align.Supplied with the maintenance kit to reinstall. Be sure to use the same type. Of screws that were originally installed on. Repeat steps 13 and 14 for the second cylinder. Flip the valve plate over and install the new.
Install the valve plate onto the cylinder. Sleeves ensuring the leaf valves are pointing.
Install the two new head o-rings from. The maintenance kit onto the top of the.
Align the head covers on top of the valve. Match the grooves in the head to the. Grooves in the valve plate. Install the six screws to secure the head covers.
Leave the inner two screw. We recommend going back and. Forth between screws to ensure the screws are. Be sure not to over tighten.
(Recommended Torque: 47-50 in lb). Reinstall the brass 90 degree fitting attached. If the flex tube was. Disconnected from the barb, reinstall with the. It is recommended to use. Pipe Joint Compound or Teflon Tape when. Be sure to position the 90 degree. Fitting pointing away from the capacitor and. Tighten with a 1/2 wrench. Reposition the two spacers onto the two. Remaining holes in the head assembly. Then reinstall the manifold using the two. Using a 5/32 Allen wrench. Be sure to go back. And forth to ensure the screws are securely. Reinstall the two 1/4 pipe plugs, using Pipe. Joint Compound and a 1/4 Allen wrench. Is important that the plugs are reinstalled in.Their original valve plate holes. Reinstall the air filter onto the last valve plate.
Hole using a 5/8 wrench, again using Pipe.