Sunnen LBB-1660, Installation, Setup And Operation Instructions

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9. Recheck Brake Strap Tension Adjustment after
10 hours of operation and readjust as required.
REPLACE BRAKE STRAP
To replacement worn or broken Brake Strap proceed
as follows
(refer to Figures 4-18 & 19) :
WARNING
Turn electrical power OFF at main buss box or
main power source when performing any
maintenance not requiring power.
1. Turn OFF all electrical power to machine.
2. Push E-STOP Button.
3. Loosen safety latch pin, raise belt cover latch
and open belt guard.
NOTE:
Turn Disconnect Switch on left side of Belt
Guard to OFF position, then open doors.
4. Release Brake by raising Brake release Lever.
5. Step on Pedal and remove Brake Strap from
Brake Anchor stud (refer to Figure 4-17) . Then
release pedal.
6. Loosen Locknut (A).
7. Loosen Socket Head Capscrew (D) in Brake
Cam, using 1/4" hex wrench.
8. Remove Slotted Head Screw (C) and Washer
from Brake Cam. Discard worn Brake Strap (refer
to Figure 4-18) .
9. Clean groove in which strap rides on Spindle
Pulley.
CAUTION
Brake Strap must, be positioned on Brake Cam and
spindle pulley as shown.
10. Install new Brake Strap on Brake Cam, using
Screw and Washer removed in step 6.
11. Wrap Brake Strap around groove in Spindle
Pulley and install on Brake Anchor. Position strap
loop on Brake Anchor Stud so Strap is aligned with
the brake strap groove in the spindle pulley.
12. Adjust Brake Strap Tension as required (see
Adjust Brake Strap Tension).
13. Close right side of Belt Guard and reinstall
Button Head Capscrew removed in step 4.
14. Recheck Brake Strap Tension Adjustment after
10 hours of operation and readjust as required.
25
FIGURE 4-17, Brake
FIGURE 4-18, Brake
SCREW
(D)
BRAKE
LEVER
BRAKE
CAM
LOCKNUT
(A)
BRAKE
ANCHOR
STUD
BRAKE
ANCHOR
STUD
LOCKNUT
(A)
SCREW
(D)
BRAKE
LEVER
BRAKE
CAM
FIGURE 4-19, Brake
BRAKE
CAM
BRAKE
STRAP
SCREW
BRAKE
LEVER
SCREW
(E)
WASHER