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MOTOR MOUNTS
The motor mount must be installed on output end of reducer as
shown in Figure 3.
Remove two or three (as required) housing bolts on output end
of reducer. Install back support 1 and front support 2 with new
housing bolts 8. Install mounting bolts 3.
Install mounting plate 5 with adjusting studs 4 as shown in Figure
3. Assemble one motor rail 6 by loosely bolting through the
two front holes on each side of mounting plate (Figure 3) with
mounting rail bolts 7.
Measure the distance between front and rear mounting holes of
motor. Position the rear motor rail to this distance and loosely
bolt to the mounting plate.
Center the motor on the motor rails. Use a plain washer under
each slot in the motor rails when the motor mounting bolts are
less than diameter. Bolt motor snugly to motor rails.
Install motor sheave and reducer sheave on their shafts as close
as possible to the motor and reducer housings. Note: The motor
rails may be moved forward or backward from the position
shown in Figure 3 to permit alignment of the V-belt sheaves.
It is permissible for the front motor rail to extend beyond the
mounting plate 5. Align the V-belt sheaves carefully and tighten
all bolts securely.
Install V-belts and adjust belt tension. Figure 3 shows the mount
near the minimum belt center position. To increase the center
distance, loosen the four nuts "A" on the adjusting studs and
tighten the four nuts "B" alternately and evenly until the belts are
properly tensioned.
Check all bolts to see that they are securely tightened.
Figure 3 - Complete Drive
NOTE: Belt guard removed for photographic purposes.
WARNING: Do not operate if belt guard is not in place.
REPLACEMENT OF PARTS
NOTE: Using tools normally found in a maintenance
department, a Dodge Torque-Arm speed reducer can be
disassembled and reassembled by careful attention to the
instructions following.
Cleanliness is very important to prevent the introduction of dirt
into the bearings and other parts of the reducer. A tank of clean
solvent, an arbor press, and equipment for heating bearings and
gears (for shrinking these parts on shafts) should be available.
The oil seals are contact lip seals. Considerable care should be
used during disassembly and reassembly to avoid damage to the
surface on which the seals rub.
The keyseat in the input shaft, as well as any sharp edges on
the output hub should be covered with tape or paper before
disassembly or reassembly. Also, be careful to remove any burrs
or nicks on surfaces of the input shaft or output hub before
disassembly or reassembly.
Ordering Parts
When ordering parts for reducer, specify reducer size number,
reducer model number, part name, part number, and quantity.
It is strongly recommended that, when a pinion or gear is
replaced, the mating pinion or gear also be replaced.
If the large gear on the output hub must be replaced, it is
recommended that an output hub assembly consisting of a gear
assembled on a hub be ordered to ensure undamaged surfaces
on the output hub where the output seals rub. However, if it is
desired to use the old output hub, press the gear and bearing off
and examine the rubbing surface under the oil seal carefully for
possible scratching or other damage resulting from the pressing
operation. To prevent oil leakage at the shaft oil seals, the smooth
surface of the output hub must not be damaged.
If any parts must be pressed from a shaft or from the output hub,
this should be done before ordering parts to make sure that none
of the bearings or other parts are damaged in removal. Do not
press against rollers or cage of any bearing.
Because old shaft oil seals may be damaged in disassembly, it is
advisable to order replacements for these parts.
If replacing a bearing or a shaft, it is advisable to order a set
of shims for adjustment of bearings on the shaft assembly. If
replacing a housing, a set of shims should be ordered for each
shaft assembly because the adjustment of the bearings on each
shaft assembly is affected.
Removing Reducer from Shaft
WARNING: To ensure that drive is not unexpectedly started,
turn off and lock out or tag power source before proceeding.
Remove all external loads from drive before removing or
servicing drive or accessories. Support reducer by external
means before removing from shaft. Failure to observe these
precautions could result in bodily injury.
1.
Disconnect and remove belt guard, V-drive, and motor
mount as required. Disconnect torque arm rod from reducer
adapter.
2.
Remove bushing screws.
4
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