Possible Problems And Solutions - Napa 791-6430 Instrucciones De Operación

operaTing ManuaL & parTS LiST for 791-6430

poSSibLe probLeMS and SoLuTionS

SoLuTionS
The release valve is not closed.
Low on hydraulic fluid. refill the jack to the correct level of hydraulic fluid.
pump seals and back-up ring is defective. Clean fluid passages, replace seals
and renew hydraulic fluid. (Must be serviced by qualified service center)
The hydraulic system is filled with air. open the release valve,
pump handle rapidly (4) full strokes to purge air, close release valve.
return spring is broken or linkages binding.
replace spring if broken. grease pivot shaft, oil all lift arm linkages.
discharge ball is not sealing hydraulic system and oil may be dirty.
Manually flush hydraulic system by raising and lowering lift arm by
hand. open the release valve, as required, to raise and lower the lift
arm. Manually raise and lower lift arm.
791-6430 5 11/07/07