TM 10-4610-215-24TM 08580A-24/2b. Removal.(1) If necessary, remove motor from pump in accordance with paragraph 2-48 and remove pumpassembly from stand in accordance with paragraph 2–71.CAUTIONThe chemical feed pump is a delicate piece of equipment. It canbe damaged if dirt or grease gets into the mechanism. Beforebeginning disassembly of pump block, make sure work space isclean and uncluttered. Clean exterior of pump thoroughly beforetaking it apart.NOTEPump blocks are filled with lubricating oil which may spill out oftie-rod holes. Depending on shop conditions, you may removelubrication by opening screw plug on top of each block andpouring out oil.(2) Remove two nuts (1) (figure 3-25) (ARMY) from tie rods holding assembly together.(3) Remove three nuts (1) (figure 3-26) (USMC) from tie rods holding assembly together.(4) Remove end plate (2) and gaskets (3) from tie rods (5). Discard gaskets (3).(5) Slide pump block/head assemblies (4) and gaskets (3) off tie rods (5), one at a time.c. Cleaning.(1) Clean tie rods, their threads, and threads on nuts holding end plate.(2) Clean gasket seats before replacing a bad unit with a serviceable one.(3) Remove chemical corrosion, pitting, and discoloration on each pump unit.(4) Clean chemical tube couplers on all pump units.3-115
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