QubicaAMF XLi - Separating Front End Gearbox and Motor

QubicaAMF XLi Pinspotter Motor and Gearbox Manual
400-088-038 7 Revision F
1.3.5 Detecting Gearbox Problems
Inspect the gearboxes at least once every 60 days to identify the need for service or replacement. The
following symptoms can be detected without any disassembly.
 Oil Leakage
Oil leakage from seals may indicate shaft and/or seal wear.
 High Internal Operating Temperature
The maximum normal operating temperature of a front end gearbox is 50° F (28° C) above ambient
temperature. Higher temperatures may be caused by low oil level or internal component failure. As
a general rule, higher operating temperatures warrant a more complete examination.
 Shaft End Play and/or Gear Backlash
Excessive radial or axial gearbox shaft movement (end play) indicates worn bearings, broken
retaining rings, incorrect shimming, etc. Excessive backlash (rotational shaft movement without
resistance) indicates gear wear.
 Excessive Noise
A certain amount of noise is inherent in gearbox assemblies and is normal. Excessive noise such as
grinding or popping sounds coming from a gearbox indicates internal problems. The unit should be
removed from service and replaced or repaired if possible.
1.3.6 Separating the Gearbox and Motor
Whenever the motor is removed from the gearbox, inspect the motor shaft, key, and anti-fretting
sleeve (if applicable) for damage or excessive wear. Replace as necessary. On gearboxes
manufactured on or after 08/01/2009 (those with serial numbers of 080109-X and newer [see
below*]), the worm input shaft has been modified and an anti-fretting sleeve (quill liner) has been
added to reduce wear and make disassembly easier. 50 Hz gearboxes manufactured on or after
11/09/12 and 60 Hz gearboxes manufactured on or after 10/28/12 no longer have an anti-fretting
sleeve (quill liner). If your gearbox contains an anti-fretting sleeve, do NOT reassemble the motor
and gearbox without this sleeve in place or damage to the motor shaft or gearbox worm shaft will
occur. Replacement sleeves are available. When reattaching the motor to the gearbox, coat the
motor shaft, anti-fretting sleeve, and the inside of the gearbox input shaft with anti-seize compound.
*A word about serial numbers
Gearbox serial numbers are based on their manufacturing date so that a gearbox with serial number
080109-1 represents the first gearbox manufactured on August (08) 1
st
(01) 2009 (09). Because of
this, a gearbox with a seemingly lower serial number, such as 010510-1, would actually have been
manufactured after the gearbox with serial number 080109-1 (010510-1 would represent a gearbox
manufactured on January (01) 5
th
(05) 2010 (10) even though the serial number is numerically lower
than the one in the first example. The key thing to remember is that serial numbers are date codes
and not a sequential number series.