BorMann Pro BAP7000 - Fluid Section Seal Replacement; Disassembly of the Fluid Section; Assembly of the Fluid Section

EN
WWW.BORMANNTOOLS.COM
19
Fluid Secon Seal Replacement Instrucons
WARNING! Always wear protecve eye wear while servicing the pump. Be sure to follow the Pressure Relief Procedure when shung the unit down for any
purpose, including servicing or adjusng. Aer performing the Pressure Relief Procedure, be sure to unplug the unit before servicing or adjusng. Area must
be free of solvents and paint fumes.
Disassembly of the Fluid Secon
1. Remove the sucon set.
2. Remove the front cover and the four screws that secure it using a T20 Torx head driver.
3. using a T20 Torx head driver.
4. Remove the yoke screw and washer that secures the dowel pin. The dowel pin connects the yoke to the piston.
5. a). For this machine, rotate the pump sha so the piston is in the top dead center posion. This can be done by pushing on the yoke. This is required to
disassemble all the parts.
b). For other models, inspect the yoke assembly and piston. In order to remove all the necessary parts, the piston must not be in the boom dead center po-
sion. If the piston is at the boom of the stroke, install the front cover and screws, turn the pump on briey to index the piston, unplug the unit, and repeat
step 2.
6. Unscrew and remove the inlet valve assembly .
7. Remove the piston assembly by pushing down on the piston near the yoke.
8. Unscrew and remove the top nut using and adjustable wrench.
9. Remove the worn seals using a at head screwdriver or punch. Remove the top seal from the top and the boom seal from the boom by pressing against
the side of the seal and popping it out. Be sure not to scratch the housing where the seals are located.
10. Clean the area where the new seals are to be installed.
Assembly of the Fluid Secon
1. Lubricate the new top seal with Separang Oil or light household oil and by hand place the seal (cup side of seal down) into the top port of the housing.
2. Place a small amount of an-seize on the threads of the top nut. Place the top nut into the top of the housing and ghten with an adjustable wrench. This
will drive the top seal into the correct posion.
3. Turn the pump upside down. Lubricate the seal on the piston/seal assembly similar to the top seal. Place the piston/seal assembly into the boom of the
housing. Insert the plasc inseron tool and thread into posion to properly seat the piston/seal. Thread fully unl ght. Remove the inseron tool.
4. Install the new O-ring on the inlet valve assembly, lubricate with Separang Oil, thread into the boom.(inlet) of the housing, and ghten with an adjustable
wrench. This will drive the boom seal into the correct posion.
5. Align the piston with the yoke. Be careful not to damage the piston.
6. Apply any type of household grease to the piston and yoke area to prolong life. Apply to the holes in the yoke where the dowel is inserted.
7. Install the dowel pin to connect the yoke to the piston. The piston may have to be moved up or down to do this.
8. Install the yoke screw and washer to secure the dowel pin.
9. Turn pump right side up and apply a few drops of Separang Oil or light household oil between the top nut and piston. This will prolong the seal life.
10. Install front cover and four (4) screws.
11. Replace inlet valve. Install the sucon set.
Locang sleeve
Steel ball
Lathe dog
O-ring
Valve body
Piston/seal assembly
NOTE- DO NOT
aempt to remove the
seals from the piston
Top nut
Top seal
(cup down)