Nexen CSB 75 960764 - Manual (Page 3)

FORM NO. L-21201-B-0606 Copyright 2004 Nexen Group, Inc.
INSTALLATION
Figure 1 Mounting a BTBA Brake
SAFETY ChuCK pREpARATION
1. Remove orange cap from the back of the Safety
Chuck.
If applicable, remove threaded inserts from the two
mounting holes on the back of the Safety Chuck.
2. Apply Loctite®242 or equivalent to the low head
cap screw provided with the Adapter Kit.
3. Mount adapter plate on back of the Safety Chuck
using a minimum of four low head cap screws.
NOTE: Be sure that the plate is properly aligned, so it
does not rub on the shaft of the Safety Chuck.
4. Tighten the low head cap screws using the torque
value listed in Table 1.
BTBA ADApTER KIT
1. Install the first jam nut onto the anti-rotation pin so it
is threaded on as far as it can travel.
2. Slide the pin into one of three mounting holes in the
Adapter Plate. Choose the hole based on where you
want the fan electrical connection oriented.
NOTE: The smooth part of the pin will be inserted into
the BTBA anti-rotation hole.
3. Apply Loctite®242 or equivalent on the pin, and
install the second jam nut onto the anti-rotation pin
and secure the nut against the adapter plate using
the recommended tightening torque listed in Table
2.
4. Mount the brake on the shaft, aligning the anti-rota-
tion hole with the pin in the adapter plate.
5. Secure the brake to the shaft allowing a minimum
amount of clearance between the brake and the
adapter plate.
NOTE: Make sure that the brake hub does not come
in contact with the low head cap screws used to
mount the plate to the Safety Chuck.
® Loctite is a registered trademark of Henkel Corporation.
Second
Nut
Anti-Rotation Pin
Inserted into Anti-
Rotation Slot
Safety
Chuck
Brake
Clearance Between Brake
and Adapter Plate
Adapter
Plate
Table 1
Table
First Nut
Screw Type Tightening Torque
M5 8 Nm [75 in-lbs]
M6 14 Nm [125 in-lbs]
M8 28 Nm [250 in-lbs]
M10 45 Nm [400 in-lbs]
M12 101 Nm [900 in-lbs]
Jam Nut Tightening Torque
.250-20 7 Nm [58 in-lbs]
.375-15 24 Nm [216 in-lbs]
.500-13 38 Nm [335 in-lbs]