3-40. STROKE ADJUSTMENT ASSEMBLY (CHEMICAL FEED PUMP) REPLACE -
Adjustment tube is easily damaged. Place a rag around it before
positioning vise grip and do not overtighten vise grip.
(10) If gap is not 0.002, remove cap (25) and, holding tube (20) with vise grip, loosen locknut (21). Back locknut off
Turn adjustment screw (22) as required until correct gap of 0.002 is obtained.
When correct gap is obtained, tighten locknut (21) against tube (20) and install cap (25).
Position gasket (8) and cover (7) on pump housing (9) and install 16 lockwashers (6) and screws (5).
When replacing gaskets (4), install all gaskets in replacement set. If
backlash is too tight (shaft is hard to turn), remove gaskets as required
so that backlash is minimum, but shaft can be turned easily by hand.
Position gaskets (4) and drive housing (3) on pump housing (9) and install four screws (2).
Install drain plug (1) and add oil (Paragraph 2-60).