Trebor SL20 CHAMPION - Manual (Page 23)

CHAMPION SL20 PUMP OPERATION / MAINTENANCE MANUAL PAGE 23
• Attach union nut to one side of pump body (hand tight). Do not install
diaphragm on this step. This will protect body during initial pump assembly.
• Remove pump from the assembly fixture.
• Place pump body with union nut down and place two diaphragms, removing
all air from between diaphragms, with “V” groove point toward the body. Be
sure to install Fiber Optic Target between diaphragms.
• Install head on body. Note tab alignment and orientation of transfer tube
ports in head.
• Install slip ring and union nut on pump while gently pressing down on the
head to engage tabs in head and body, spin union nut down hand tight.
• Turn pump over and remove union nut to install diaphragms and target as
before.
• Repeat diaphragm, head, slip ring and union installation.
• Lock body into mounting fixture.
• Using strap wrench, torque union nuts slowly to 75 ft-lbs. with the wrench at
90° +/- 15° to the nut’s surface as shown.
• Remove pump from assembly fixture.
• Install check cap seal, O-ring and ball in suction ports.
• Install suction caps 1/8 turn past hand tight.
• Install check cap seal, O-ring and call in discharge ports.
• Install discharge caps 1/8 turn past hand tight.
4.9.c Final Assembly
• Reinstall transfer tubes in head ports using 1/4” Allen wrench. Ensure
transfer tubes are tight.
• Position pump control base on mounting plate, slide base forward, use
locking lever to secure.
• Loosely attach quick grip nuts to transfer tube ports on control base.
• Install pump onto control base by inserting transfer tubes in pump into quick
grip nuts on control base.
• To secure pump to control base, tighten quick grip nuts one (1) full turn past
hand tight using 13/16” wrench.
• Reconnect both air supply and fluid lines.