MDX [en-US]
42
For Pumps without Impeller Release Ring
A light coat of anti-seize can be applied inside the shaft sleeve
Do not allow anti-seize compound to come in contact with any of the axial faces of the shaft sleeve, including the
impeller contacting face and the face in contact with the shaft shoulder.
When installing the shaft sleeve, stop when the sleeve face and shaft face are approximately 1" (25mm) apart. Inspect
the faces to be sure they are still clean and free from grease. If grease is present, the faces must be cleaned before
the sleeve is slid into place.
In many cases, there will be an o-ring which must be placed on the shaft first. As the shaft sleeve is pushed into position,
this o-ring should be completely forced into the shaft sleeve recess.
WARNING
Lubrication at any of shaft sleeve, release ring (if present) or shaft shoulder faces may result in overloading and
breakage of the shaft.
Conventional Type Shaft Sleeve Arrangement
Hook Type Shaft Sleeve Arrangement
10.3.2 Hub Plate (if applicable)
For open hub casings it is necessary to inspect and clean the sealing areas on both the hub plate and casing. Any
burred or rough surfaces must be smoothed manually. Apply lubricant or mild liquid soap to prevent friction during
assembly and place the o-ring or snap ring gasket onto hub plate.
If applicable, insert the fasteners that hold the hub liner to the hub plate into the hub liner. Lift the hub plate and install
onto the hub liner using a cross torque bolting pattern.
Install the studs that hold the hub plate to the pedestal into the hub plate and then mount to the pedestal using a cross
torque bolting pattern.
10.3.3 Mounting the Casing
If the casing has an open hub construction it may be more convenient to mount the impeller prior to mounting the
casing. See Section 10.3.4 “Mounting the Impeller” for details.
The alignment of the pump casing with the mechanical end is obtained through a rabbet fit machined into the pedestal.
For the best wear and efficiency performance, it is essential that the casing be fully seated in this fit.
Ensure that the proper gasket is fitted between the casing and pedestal before installing.
If casing feet are used, lift the casing vertically and loosely bolt the feet to the casing. Lower the casing until the feet
pads come in contact with the casing and then torque the bolts.
Thread the studs that hold the casing to the casing to the pedestal or hub plate and mount using a cross torque bolting
pattern.
Summary of Contents for GIW MDX
Page 53: ...MDX en US 53 14 Notes...