Torque
“BC”
Spring
Shaft Length
Magnet Gap “A”
Model Number
Lb. Ft.
+1/32 -.000
Length “D”
“AH” Max.
A-Min.
A-Max.
R71010-9
10
5/8
1-5/16
3-7/16
.030
.062
R71015-9
15
5/8
1-5/16
3-7/16
.030
.062
R72025-9
25
5/8
1-5/16
3-3/4
.030
.062
R73035-9
35
5/8
1-5/16
4-3/8
.035
.062
R74050-9
50
5/8
1-5/16
5-1/8
.035
.062
R75075-9
75
5/8
1-5/16
5-1/8
.045
.062
INSTALLATION OF FOOT MOUNTING
BRAKE (See Tables 4, 5 & Figure 5)
9.
Install bracket (F1) over motor shaft extension and half-
tighten capscrews (F8). The distance from the mounting face
of the bracket (F1) to end of motor shaft must not exceed
dimension “AH” max. (Table 5).
10. Clamp dial indicator “A” to motor shaft and position bracket
(F1) with shims as necessary, by tapping with a soft mallet
until dial indicator does not read over .002” total change in
one full revolution of the shaft. Move dial indicator to “B”
and position bracket until dial indicator does not read over
.004” total change in one full revolution of shaft.
11. Draw all bolts up tight. Recheck alignment with dial indicator.
Readjust if necessary until tolerances are within limits with all
bolts tight. Drill eight 1/4” dia. holes into mating parts and
drive dowel pins (F7) into place.
12. Mount stop bushing (F3) on shaft with clearance of .005” to
.015” between bushing and bracket (F1). Mount hub (14) on
shaft butting firmly against stop bushing. Complete mounting
of brake per paragraphs 2 through 6.
WEAR ADJUSTMENT (See Figure 2 & Table 4)
13. The magnet gap “A” increases as the friction discs wear.
When magnet gap measures “A-Max,” adjust to “A-Min”
using gap adjusting nuts (2) and (4). Magnet gap must never
exceed “A-Max” and must be adjusted periodically.
ITEM DESCRIPTION
QTY
PART NUMBER
F1
Foot Mtg. Bracket
1
K070066-001
F2
Foot Pad
2
G070180-001
F3
Stop Bushing
1
G070181-*
F4
Set Screw
2
W002001-013
F5
Hx. Hd. Cap Screw
4
W001007-055
F6
Split Lockwasher
8
W004006-008
F7
Roll Pin
8
W005003-170
F8
Hx. Hd. Cap Screw
4
W001007-058
14
Hub
1
H070044-*
15
Mounting Bolt
4
W001013-132
16
Locking Screw
4
W002002-001
*Specify bore
MODEL 71010
71015
72025
73035
74050
75075
“AH”
4-3/4
4-3/4
5-1/16
5-11/16 6-7/16
6-7/16
Table 4. Adjustments
Table 5. Foot Mounting Parts
Figure 5.
6
