. OPERATION EXPLANATION OF COMPONENTS HANDLING CAB WIPER PREVENTING DAMAGE TO WIPER ARM BRACKET 3 - 98 NOTICE When a ngling the wiper arm (1) to the front , check that the wiper blade is hanging free. When angling t he wiper arm (1) to the front, such as when wiping the glass clean, if the wiper arm ( 1) is angled with the wipe r blade (2) locked to the arm ( the bottom o f the blade i s caught on th e arm), abnormal force is brough t to bear on th e mounting bracket a nd the bracke t may break.