Warner Electric Blade Brake Clutch Application Guide - Manual (Page 9)

9 Warner Electric • 800-825-9050 P-1319-WE • 819-0465
Symptom: BBC will not brake the mower blade
V: Troubleshooting the Warner Electric BBC
Symptom: BBC will not engage or is slow to engage
Problem Possible Causes Section Referral/Solution
Clutch and brake are engaged at the
same time Cable is out of adjustment Readjust the BBC actuation cable. (Refer to
Section V #9)
Friction material is contaminated Engine oil has infiltrated the friction material
Grass or dirt has lodged around the friction
material If engine oil has been leaking onto the friction
surfaces, replace the BBC immediately. If
grass or dirt has lodged around the friction
material, disassemble and remove the clutch
assembly (See Section VI A & B) and remove
the contaminants. (Refer to Section IV G)
Mounting bolt torque is inadequate Mounting bolt improperly installed Torque the mounting bolt to the specified
installation torque. (Refer to Section VI A & B)
Overloaded clutch Application is improperly sized Consult Warner Electric personnel for
assistance.
Friction material is worn out BBC has surpassed its life Replace the clutch assembly or the entire
BBC. (Refer to Section VI A)
Problem Possible Causes Section Referral/Solution
Clutch and brake are engaged at the same
time Cable is out of adjustment Readjust the BBC actuation cable. (Refer to
Section V #9)
Anti-rotation device has failed Anti-rotation device is missing or failed
during mower operation Replace the anti-rotation device. Inspect
the BBC closely for damage and replace if
necessary. (Refer to Section IV C)
Friction material is contaminated
Engine oil has infiltrated the friction
material
Grass or dirt has lodged around the
friction material
If engine oil has been leaking onto the
friction surfaces, replace the BBC
immediately. If grass or dirt has lodged
around the friction material, disassemble
and remove the clutch assembly (See
Section VI A & B) and remove the
contaminants. (Refer to Section IV G)
Brake return spring is improperly installed Installed incorrectly at the manufacturing
site or by service personnel Reinstall the brake return spring per the
lawnmower manufacturer's
specifications. (Refer to Section IV D)
Overloaded brake Application is improperly sized Consult Warner Electric personnel for
assistance.
Mounting bolt torque is inadequate Mounting bolt improperly installed Torque the mounting bolt to the
specified installation torque. (Refer to
Section IV A & B)
Friction material is worn out or glazed BBC has surpassed its life, cable out of
adjustment, or brake spring too weak. Replace the brake assembly/the entire
BBC, or replace brake spring/adjust cable.
(Refer to Section V A & B)