MAGNUM 620D PUMP OPERATION / MAINTENANCE MANUAL
PAGE 21
Figure 4-6
Remove shaft insert tool and thread second push plate until engagement with
the shaft shoulder is achieved. Again,
apply a ¼” turn to ensure proper
installation.
4.8.c Final Assembly
•
Reattach pump to assembly fixture.
•
Attach head 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 head down and place one diaphragm
with “V” groove
point away from the body.
•
Install pilot and pilot seat into heads. Torque pilot seats to 15in-lbs.
•
Install head on body hand tight.
•
Turn pump over and remove union nut to install diaphragms on other side.
•
Repeat diaphragm and head installation.
•
Lock body into mounting fixture.
•
Using a strap wrench, torque heads slowly until heads are oriented into
horizontal alignment of transfer tube holes. See Figure 4-7
with the wrench
at 90° +/-
15° to the nut’s surface as shown.
Figure 4-7