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Adjustment / Installation - U-Brakes
1. Installation to frame.
a. Apply grease (lubricant) on the contacting surfaces of the frame bosses and the brake arm attaching area.
b. Note that spring winding direction for right and left arms is different. (see Fig. 1)
c. Be sure that spring is securely attached to the hole on the brake arm, spring cover and arm fixing nut. Then tighten the attaching bolt
with a 5mm Allen key wrench. Tightening torque should be 60 to 80 kgf. cm.
2. Adjusting and Fixing Brakeshoes.
a. Brake arm should have free movement when adjusting brakeshoe. Be sure to place the brakeshoe so that the direction of the arrow
sigh is the same direction of rim rotation.
b. Facing the shoe surface to the rim, set it as shown in Fig 2.
c. Hold the brake in position with a 5mm Allen key wrench and tighten the nut with a 10mm wrench. (the tightening torque should be
70 to 90 kgf.) see fig 3.
3. Connecting to Braking Cable See fig 1.
a. Attach the braking cable to the straddle cable bridge.
b. Set the straddle cable as in fig 1, and adjust the shoe-rim leaving clearance of 1.5mm on both sides.
c. Tighten the straddle cable with the cable fixing nut. Tightening torque should be 50 to 70 kgf. cm.
d. Cut off the excess straddle cable and attach the cable cap.
4. Tuning the shoe clearance and spring tension.
a. When the left side (a in fig 1 is greater than b, turn the arm fixing nut in the A direction. (counter clockwise with a 13mm
wrench.) When the right side is greater than a, turn the arm fixing nut in the B direction (clockwise). (use a 13mm wrench)
b. When spring tension is tightened, turn the arm fixing nut to A and A’ in fig 1. When loosening, turn to B and B’. (use 13mm
wrench)
Fig. 3
Fig. 1
20067_OWNERS-MANUAL.qxp 08/03/2006 10:41 AM Page 59
SHEPPARD CYCLES ABN 60 082 376 289
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