MAINTENANCE 4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH High-Strength Bolt Connections (continued) Power House Doors, illust. Z 20707 G Check fastening and condition of power house doors (24 - 25) and door hinges (26). G Check fastening and condition of safety rods (41). G Check upper pump compartment door locks (35 - 36) for cor- rect mounting. G Check lower pump compartment door locks and radiator door locks (37 - 40) for correct mounting. G Lubricate door hinges (26) at grease fittings (27). 385