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®
MSM/RHB Reducer
Screw Conveyor Size 38—128
Instruction Manual
These instructions must be read thoroughly before installation or operation. This instruction manual was accurate at the time of
printing. Please see
dodgeindustrial.com
for updated instruction manuals.
WARNING: To ensure the drive is not unexpectedly started, turn off and
lock-out or tag power source before proceeding. Failure to observe these
precautions could result in bodily injury.
WARNING: Because of the possible danger to person(s) or property
from accidents which may result from the improper use of products,
it is important that correct procedures be followed. Products must be
used in accordance with the engineering information specified in the
catalog. Proper installation, maintenance and operation procedures
must be observed. The instructions in the instruction manuals must
be followed. Inspections should be made as necessary to assure
safe operation under prevailing conditions. Proper guards and other
suitable safety devices or procedures as may be desirable or as may
be specified in safety codes should be provided, and are neither
provided by Dodge
®
nor are the responsibility of Dodge. This unit and
its associated equipment must be installed, adjusted and maintained
by qualified personnel who are familiar with the construction and
operation of all equipment in the system and the potential hazards
involved. When risk to persons or property may be involved, a holding
device must be an integral part of the driven equipment beyond the
speed reducer output shaft.
WARNING: All products over 55 lbs (25 kg) are noted on the shipping
package. Proper lifting practices are required for these products.
NOTE: See manual MN1617 for MSM Reducer standard installation. See
manual MN1618 for RHB Reducer standard installation.
®
Figure 1 - Screw Conveyor Adapter Assembly
INSTALLATION
1. Install seals (408) into adapter housing as shown in Figure 1.
If the optional packing adapter is to be used, install only one
seal in the small end of the adapter. Use extreme care when
installing seals to avoid damage to the seals. Press or tap
seals into place by applying pressure only on the outer edge
of the seal. Make sure seals are installed evenly and are not
tilted.
2. If using the optional packing adapter, install the two studs
(413), retaining ring (412), and two nuts (414). Thread the
nuts onto the studs about 4-5 threads. Install the three
braided type seals (415) in a circular direction into the adapter
cavity. Shoulder the braided seals against the adjustable
retaining ring (412). To aid in installation of the driveshaft in
step 7, the braided seals can be flattened out slightly with a
soft hammer prior to installation. When installing the braided
seals, offset the joints from one another.
3. Lightly tap the large washer (407) into the counter bore on the
large end of the adapter to seal the braided material installed
in Step 2 or the seal installed in Step 1.
4.
Place reducer on block so that it lays flat with the output shaft
up.
5. Position screw conveyor adapter (400) on the reducer output
hub so that the small end (end with 6 through holes) rest on
the reducer.
6. Place six adapter screws (409) and lock washers (410)
through the adapter and thread into the reducer. Tighten four
cap screws (409) to the torque specified in Table 1.
Table 1–Recommended Tightening Torques
for Adapter Assembly
Unit Size
Bolt Thread Size
Tightening Torque
MSM/RHB 38
M8
25 Nm
220 in-lb
MSM/RHB 48
M10
50 NM
440 in-lb
MSM/RHB 68
M12
90 Nm
800 in-lb
MSM/RHB 88
M12
90 Nm
800 in-lb
MSM/RHB 108
M16
210 Nm
1860 in-lb
MSM/RHB 128
M16
210 Nm
1860 in-lb
414
415
412
400
404
409
410
408
403
408
407
401
405
406
402
411
413
ADJUSTABLE
ADAPTER KIT
