Hardi ATV Series Operator's Manual

Hardi ATV Series Operator's Manual Manual pdf 38 page image

36 HARDI® ATV SPRAYER DIAPHRAGM OPERATOR'S MANUAL6.5 Recommended Tire PressureThe tires should not run under-inflated. This only promotes instabilityand rapid wear.Do not exceed 15 mph.6.6 Changing The Valves And Diaphragms (1203 Pump)Note: It is recommended that if one or more diaphragms and or valvesneed replacing, they should all be replaced (HARDI® Complete rebuildkit for 1203 diaphragm pump - #750696).1. Remove the valve cover 1 (Fig. 17). Beforechanging the valves 2 (Fig. 17), note theorientation of the valves so that theyare replaced correctly.2. It is recommended to use newO-rings 3 (Fig. 17) (part #330072)when changing or checking valves.3. Remove diaphragm covers 4 (Fig. 17) togain access to the diaphragms.4. Remove the diaphragm bolts 5 (Fig. 17).The diaphragms 6 (Fig. 17) may now bechanged.5. If fluids have reached the crankcase,regrease the pump thoroughly. Also makesure the drain hole at the bottom of thepump is not blocked.6. Reassemble with torque settings shown below.412356Fig. 17Tire size Maximum pressure23 x 10.5 - 12 20 psi (1.5 bar)Valve CoverFt/lb(Nm)DiaphragmBolt Ft/lb(Nm)DiaphragmCover Ft/lb(Nm)45 (60) 45 (60) 50 (70)