Installation (continued) – Nexen DPC-13T 962200 User Manual
Page 7
7
FORM NO. L-20093-L-1209
PILOT CLUTCH
Refer to Figures 3 & 4.
NOTE: The Pilot Clutch is a combination of the Element
Clutch and a Pilot Assembly.
1. Install Support Bushing, if required.
NOTE: The Support Bushing provides radial load support
at the shaft, and is used when bore sizes smaller
than standard are required.
a. Place Pilot Assembly face down, and fully support
the flange of the Extension Hub (Item 22).
b. Insert the Support Bushing into the bore of the
Extension Hub (Item 22).
c. Apply even pressure around the entire diameter of
the Support Bushing, and press the Support Bushing
into the Extension Hub.
NOTE: Do not use a hammer to install the Support
Bushing; a small Arbor Press is recommended.
2. Push the Pilot Assembly into the Element Clutch, and align
the counterbored holes in the Pilot Housing (Item 23) with
the tapped holes in the Flange Mount Disc (Item 5).
3. Install the Cap Screws (Item 21), and tighten them to the
recommended torque (See Table 4).
4. Align the counterbored holes of the Splined Hub (Item 1)
with the tapped holes of the Hub Extension (Item 22).
5. Install Cap Screw (Item 28), and tighten them to the
recommended torque (See Table 4).
6. Thoroughly inspect the tapered bore of the Splined Hub,
and the tapered surface of the Q.D. Bushing; remove any
dirt, grease, or foreign material.
NOTE: Do not use lubricants when installing the Q.D.
Bushing.
7. Install the Q.D. Bushing into the Splined Hub; aligning
the untapped holes in the Q.D. Bushing with the tapped
holes in the Splined Hub.
NOTE
Do not strike the Q.D. Bushing to “set” it in the tapered
bore.
8. Loosely insert the Pull-Up Bolts, and Lockwashers into
the Q.D. Bushing, and tapped holes of the Splined Hub.
NOTE: Do not use lubricants or thread locking compounds
on the Pull-Up Bolts.
9. Measure the motor shaft runout. The runout must not
exceed 0.002 T.I.R. (Total Indicator Reading).
10. Insert Key into keyway.
11. Slide “DPC” Pilot Clutch onto the motor shaft.
Support
Bushing
23 5
28
Q.D. Bushing
1
Pull-Up
Bolts
22
21
FIGURE 3
TABLE 4
N
O
I
T
P
I
R
C
S
E
D
T
3
1
-
C
P
D
T
5
1
-
C
P
D
)
1
2
m
e
tI
(
w
e
r
c
S
p
a
C
.
T
F
9
1
1
.
S
B
L
.
T
F
9
1
1
.
S
B
L
)
8
2
m
e
tI
(
w
e
r
c
S
p
a
C
.
T
F
8
4
.
S
B
L
.
T
F
8
4
.
S
B
L
0
2
m
e
tI
(
t
u
N
k
c
o
L
.
T
F
0
7
.
S
B
L
.
T
F
0
7
.
S
B
L
s
tl
o
B
P
U
-l
l
u
P
.
T
F
5
7
.
S
B
L
.
T
F
2
1
1
.
S
B
L
INSTALLATION (continued)
12. Alternately, and evenly tighten Pull-Up Bolts to the
recommended torque (See Table 4).
NOTE
Do not over tighten Pull-Up Bolts. If excessive tightening
torque is applied, bursting pressure is created in the
Splined Hub.
NOTE: Runout is minimized if a Dial Indicator is used as
the Q.D. Bushing Pull-Up Bolts are tightened.
Place the contact tip of the Dial Indicator on the
machined surface of the Splined Hub to measure
runout. Runout on this surface must be within
0.003 T.I.R. when the Pull-Up Bolts are tightened.
Dial
Indicator
Pull-Up
Bolts
Q.D. Bushing
FIGURE 4