Jackco Models 66300B Bedienungsanleitung PDF herunterladen (Seite 5)

Caution: To prevent personal injury, all inspection, maintenance, and repair

procedures must be performed when the jack is free of load.

TROUBLESHOOTING

Trouble Solution

Jack will not lift load or leaks down

excessively

1. The release valve is not closed. Turn the

valve clockwise tightly. If this does not

work, remove handle, lubricate handle

receptacle and handle end, then retry.

2.Low on hydraulic uid. Follow Step 5 of

the "ASSEMBLY" procedure on page 3.

3.Pump seals or back-up ring may be

defective. Clean hydraulic uid passages,

replace seals and rell hydraulic uid.

(Must be serviced by qualied service

center

Jack will not lift to its full height

1.Low on hydraulic uid. Follow Step 5 of

the "ASSEMBLY" procedure on page 3.

2.The hydraulic system has trapped air.

Follow Step 5 of the "ASSEMBLY"

procedure on page 3.

Jack will not lower completely

Return spring is broken or linkages are

binding. Replace spring if broken. Grease

pivot shaft and all lift arm linkages.

Jack will not lift smoothly or jack

feels spongy

The hydraulic system has trapped air.

Follow Step 5 of the "ASSEMBLY"

procedure on page 3.

Jack will not hold load or handle

rises

Discharge ball is not sealing hydraulic

system and oil may be dirty. Manually ush

hydraulic system. Open the release valve,

as required, to raise and lower the lift arm.

Manually raise and lower lift arm.

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Jackco Models 66300B Bedienungsanleitung Seite 5