4902A, 4904A, 4906A, 4908A, 4912A, 4913A, 4920A, 4923A
rev. 06/20/07
Reservoir could be overfilled-
With jack upright; remove filler screw or filler plug, open release and SLOWLY
push jack ram into lowered position. Any excess oil will run out fill hole.
Replace filler screw or filler plug when oil has stopped flowing.
The Jack could be low on oil-
With jack in upright position and ram fully lowered, remove filler screw or filler
plug and fill reservoir with clean hydraulic jack oil — correct oil level is reached
when oil level is at bottom edge of fill hole.
Valve might not be closing-
Make certain release valve is closed. Starting with ram in fully lowered posi-
tion, SLOWLY raise ram out to full height. Open release valve and push ram
down into lowered position. Jack should now operate properly.
The jack could be low on oil-
With jack in upright position and ram fully lowered, remove filler screw or filler
plug and fill reservoir with clean hydraulic jack oil — correct oil level is reached
when oil level is at bottom edge of fill hole.
Handle
lowers
under
load
Will
not
work
in
horizontal
position
TROUBLESHOOTING TIPS
SOLUTIONS
3
3
3
3
3
3 3
3
3
Will
not
lift
full
height
Will
not
lower
completely
Will
not
lift
load
Pump
Feels
“spongy”
under
load
Handle
raises
under
load
Operating Instructions • Warning Information • Parts Breakdown
Summary of Contents for 4902A
Page 1: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 1 rev 08 01 06 ...
Page 2: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 2 rev 08 01 06 ...
Page 3: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 3 rev 08 01 06 ...
Page 5: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 5 rev 08 01 06 ...
Page 6: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 6 rev 08 01 06 ...
Page 7: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 7 rev 08 01 06 ...
Page 8: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 8 rev 08 01 06 ...
Page 9: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 9 rev 08 01 06 ...
Page 10: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 10 rev 08 01 06 ...
Page 11: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 11 rev 08 01 06 ...
Page 12: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 12 rev 08 01 06 ...
Page 13: ...4902A 4904A 4906A 4908A 4912A 4913A 4920A 4923A 13 rev 08 01 06 ...