2 MN1661
RISER BLOCK KIT
Place the riser blocks between the reducer and the bolt-on base.
The riser blocks may be supplied either as two pieces with two
holes each or as one piece with four holes. If the two piece style
reducer (install riser blocks as shown in View A, not View B).
Install the screws supplied in the kit and tighten all screws to two-
thirds of the appropriate value listed. Tighten all screws to the
WARNING: If washers are supplied, it is extremely important to use
them with the screws when attaching the base. The supplied screws
MUST be tightened to the torque values listed below. The torque
values listed are based upon the use of the supplied fasteners
which are pre-coated with a thread locker that can only be used
once. If a screw is removed during initial installation, the screw must
be discarded and replaced with a new pre-coated screw. Failure
to follow the above procedure may result in serious injury or death
from falling items.
Reducer Size Bolt or Screw Size
Tightening Torque
(ft-lb)
13 1/4-20 8
15 1/4-20 8
17 5/16-18 17
20 3/8-16 30
23 3/8-16 30
26 3/8-16 30
30 7/16-14 48
35 7/16-14 48
40 5/8-11 130
47 5/8-11 130
OUTPUT FLANGE KIT
INSTALLATION ON BEARING COVER SIDE: Remove and
discard the four retaining screws on the outside corners of the
bearing cover. Do not remove the two smaller screws. Install
all screws to two-thirds of the appropriate value listed below.
INSTALLATION ON SIDE WITHOUT BEARING COVER:
washers, and lock washers. Tighten the screws to the tightening
torque values listed in the table below.
Reducer
Size
Bolt or Screw Size
Tightening
Torque
(ft-lb)
17 5/16-18 17
20 5/16-18 17
23 3/8-16 30
26 3/8-16 30
30 7/16-14 48
35 7/16-14 48
HEX HEAD CAP SCREWS WITH
FLAT WASHERS
(QTY.4)
BOLT-ON BASE (NOT PART
OF KIT)
RISER BLOCKS (SEE TEXT
FOR QTY.)
NOTE: FLAT WASHERS TO BE
USED WITH ALL TIGEAR-2
SIZES EXCEPT SIZE 40.
VIEW A
VIEW B
OUTPUT FLANGE
(QTY. 1)
FLAT WASHER
(QTY. 4)
SOCKET HEAD CAP SCREW
(QTY. 4)
LOCK WASHER
(QTY. 4)
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