LIGHTNIN XDQ Series, Instructions Manual

Page: 23 / 48

REVISION
2001
DATE 3–16–83
REVISED 2–26–01 PAGE 4 OF 5
INST. NO. IT–1994
C
©
LIGHTNIN
LIGHTNIN
MIXERS AND AERATORS
®
6.7 Tighten mounting hardware to 85 ft–lbs. Use double nuts to lock in position.
SECTION 7 – DISASSEMBLY
7.1 Removing the Motor from the Housing:
a . To remove the mixer shaft from the drive shaft (38), back off the chuck screw (8) as far as the limit pin (11)
will allow. The mixer shaft is now free from the chuck and can be withdrawn.
For models equipped with coupling: Remove the coupling bolts and lower the mixer shaft through the
opening in the housing.
b . Remove housing cap screws and washers (1, 2 & 20).
c . Insert a hex wrench in the chuck screw (8) to prevent the drive shaft from turning. For models with couplings,
bolts can be inserted into the coupling half and a bar interlocked between the bolts to keep the shaft from
rotating.
d . Remove the shaft screw (4) through the drive shaft bore in one of the following ways:
1 . XDQ 30 through 117 – use a Phillips screwdriver.
2 . XDQ 174 through 350 – use a 3/8 inch long shank hex wrench.
e . The upper end of the drive shaft is closely fitted to the motor shaft. Therefore, to separate the motor (41)
and housing (36), tap evenly around the upper edge of the housing with a mallet.
f . On XDQ 30 thru 117 models, the motor shaft key (46) is lightly cemented in the motor shaft keyway.
7.2 Removing Drive Shaft, Bearing and Oil Seal from the Housing:
a . Follow the procedure outlined above.
b . Use Waldes Truarc No. 4 pliers to remove retaining ring (22).
c . Mount housing, motor end upward, in an arbor press and press drive shaft (38) through the lower opening
of the housing.
d . Turn the housing motor end down, and press ball bearing (27) and oil seal (24) downward out of the housing.
7.3 Disassembling the Chuck:
a . Remove the limit pin (11) by driving it into the counterbored hole.
b . Remove the chuck screw (8).
c . Remove snap ring (21), chuck grip (34) and chuck washer (18) from the chuck screw.
SECTION 8 – ASSEMBLY
8.1 Preparing for Assembly:
a . Clean all parts thoroughly.
b . Inspect for the following defects:
1 . Cracks or damage of the housing.
2 . Dents, gouges or scoring of the drive shaft, housing bore, and particularly the mating faces of the motor
and the housing.
c . Repair or replace defective parts. It is good practice to replace an oil seal which has been removed from
the housing. Apply a small quantity of bearing grease to the housing bore and around the oil seal lip to
provide lubrication and to make the seal more effective.
d . Replace the ball bearing if it shows indications of wear.
8.2 Assembling the Drive Shaft in the Housing:
a . Mount the housing (36) in an arbor press, motor end up.
b . Press the ball bearing (27) on its outer race to the shoulder of the housing bore.
c . Turn the housing motor end down and press the oil seal (24), sealing lip inward, flush with the lower end
of the housing.
d . Support the housing, motor end down, by resting the inner race of the ball bearing on a suitable sleeve.