Installation notes - suction head – Hale RSD User Manual
Page 81
81
RSD Series Single-Stage PTO Pumps
p/n: 029-0020-92-0
Co rr ec tive M ain te n an ce
❑
3.
Remove all remaining gasket material from the suction head and volute
being careful not to scratch the finished surfaces.
4.
Inspect the front clearance ring, located in the suction head, for wear
and replace accordingly. See heading “Clearance Rings, Impeller Mea-
surement” on page 85.
Note: Removing the clearance ring renders it inoperative. It must be replaced.
A usual good practice, if one ring requires replacement the other should be
replaced as well. With the clearance installed in the suction head, verify the
impeller clearance - see heading “Clearance Rings, Impeller Measurement” on
page 85.
To remove the clearance ring, use a hammer and chisel to collapse the
ring in the housing. Do not mar the sealing surface of the suction head.
WARNING !
BE SURE TO WEAR SAFETY GLASSES WHEN REMOVING AND/OR INSTALL-
ING FORCE (PRESS) FITTED PARTS. FAILURE TO COMPLY MAY RESULT IN
SERIOUS EYE INJURY.
Installation Notes - Suction Head
(See Figure 6-4: “RSD Pump Parts Overview,” on page 80.)
To install the suction head, follow the preceding steps in the reverse order,
paying attention to the following:
❑
Review preceding sections “Before You Begin...,” on page 67 and “Clean-
ing and Inspection Guidelines,” on page 70.
❑
Make sure the O-ring is seated in its groove and apply light a coat of
grease to ease installation.
❑
Be careful not to damage the clearance ring or impeller during
installation.
❑
If the clearance ring is removed, use a press to install it into the suction
head being careful not to crush or damage the ring. Verify the inside
diameter of the ring - see heading “Clearance Rings, Impeller Measure-
ment” on page 85
❑
Apply Loctite #242 to all screws and tighten in a criss-cross pattern to
ensure an EVEN seal.
❑
Refer to Table 6-1:“Typical Torque Values Chart” on page 69 for recom-
mended fastener size, material and torque value.
❑
Inspect system for proper operation, then return apparatus to service.