. OPERATION DETAILED CONTROLS AND GAUGES EMERGENCY ESCAPE HAMMER CAUTION 3 - 27 (Machi nes equipp ed with cab) If it i s necessary t o break the window glass with the hammer, b e extremely car eful not to injure yourself on the flyi oken glass. To pr event injury, remove the broken pieces of glass remaining in the frame bef ore escaping thr ough the window. not to slip on the broken pieces of glass In case it become s impossible to open the door, be use d for escap e from t he cab is installe hammer (1) to When escaping, b reak th e window glass w ith hammer