Dodge HSCXT 305E, Инструкция по эксплуатации

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6 MN16042
GUIDELINES FOR (H)SCXT REDUCER
LONG-TERM STORAGE
During periods of long storage, or when waiting for delivery or
installation of other equipment, special care should be taken to
protect a gear reducer to have it ready to be in the best condition
when placed into service.
By taking special precautions, problems such as seal leakage
and reducer failure due to lack of lubrication, improper lubrication
quantity, or contamination can be avoided. The following
precautions will protect gear reducers during periods of extended
storage:
Preparation
1. Drain oil from the unit. Add a vapor phase corrosion inhibiting
oil (VCI-105 oil by Daubert Chemical Co.) in accordance with
Table 3.
2. Seal the unit airtight. Replace the vent plug with a standard
pipe plug and wire the vent to the unit.
3. Cover all unpainted exterior parts with a waxy rust
preventative compound that will keep oxygen away from the
bare metal (Non-Rust X-110 by Daubert Chemical Co. or
equivalent).
4. The instruction manuals and lubrication tags are paper and
must be kept dry. Either remove these documents and store
them inside, or cover the unit with a durable waterproof cover
which can keep moisture away.
5. Protect reducer from dust, moisture, and other contaminants
by storing the unit in a dry area.
6. In damp environments, the reducer should be packed inside
a moisture-proof container or an envelope of polyethylene
containing a desiccant material. If the reducer is to be stored
outdoors, cover the entire exterior with a rust preventative.
When Placing the Reducer into Service
1. Fill the unit to the proper oil level using a recommended
lubricant. The VCI oil will not affect the new lubricant.
2. Clean the shaft extensions with petroleum solvents.
3. Assemble the vent plug into the proper hole.
Follow the installation instructions provided in this manual.
Table 3 – Quantities of VCI #105 Oil
Reducer Size Quantity (Ounces / Milliliter)
(H)SCXT305E 1 / 30
(H)SCXT405E 1 / 30
(H)SCXT505E 1 / 30
SCXT605E 2 / 59
SCXT705E 2 / 59
REPLACEMENT OF PARTS
IMPORTANT: Using tools normally found in a maintenance
department, a Dodge (H)SCXT 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 is replaced as well. 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.
Removing Screw Conveyor Drive from Trough End
Disconnect an electrical power to the drive. Drain lubricant from
reducer. Uncouple drive shaft and screw. Remove nuts from
trough end studs. Support drive by means of hoist and carefully
pull unit away from trough end to slide drive shaft out of screw.
Disassembly
1. Remove retainer bolt, lockwasher, and shaft retainer from
drive shaft. Pull drive shaft out of reducer from adapter side.
Remove adapter.
2. Position the reducer on its side and remove all housing
bolts. Drive dowel pins from housing. Using the three pry
slots around the periphery of the flange, gently separate the
housing halves. Open housing evenly to prevent damage to
the parts inside.
3. Lift input shaft, all gear assemblies, and bearing assemblies
from housing.
4. Remove seals from housing.
5. Remove bearings from shafts and hubs. Be careful not to
scratch or damage any assembly or seal area during bearing
removal. The hub assembly can be disassembled for gear
replacement but if scratching or grooving occurs on the hub,
seal leakage will occur and the hub will need to be replaced.
Reassembly
1. Output Hub Assembly:
Heat gear to 325°F to 350°F to
shrink onto hub. Heat bearings to 270°F to 290°F to shrink
onto hub. Any damage to the hub surfaces where the oil seals
rub will cause leakage, making it necessary to replace the
hub.
2. Input Shaft Assembly: Heat bearings 270°F to 290°F to
shrink onto shaft. Press bearings on shaft.
3. Drive the two dowel pins into place in the right-hand housing
half (backstop side).
4. Place right-hand housing half on blocks to allow for protruding
end of output hub.
5. Install all bearing cups in right-hand housing half, making sure
they are properly seated.
6. Mesh the output hub gear and input shaft assembly together
and set in place in housing. Make sure bearing rollers (cones)