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OWNER’S MANUAL Page 6 M100, M200, M300 & M400 FOOT OPERATED LIFTS
S E C T I O N 7
TROUBLESHOOTING
If lift does not rise to full height:
It probably requires oil. (Check with lift in down
position.) To fill cylinder with oil, follow these in-
structions.
There are two pipe plugs in the cylinder, Part No.
M427 (Vent Plug) and part No. M428 (Oil Level
Plug). Remove both plugs.
Put a good grade of hydraulic jack oil in the cylin-
der through the top hole. When the oil reaches the
level of the bottom hole, replace both plugs. TOP
PLUG IS A BREATHER PLUG, BE SURE TO
REPLACE PLUGS IN THEIR PROPER PLACES.
If lift does not hold load, or tends to drift down-
ward under a load:
Dirt particle may be obstructing seating of the
valve, allowing leakage.
If dirt particle is obstructing seating of the valve:
Open release valve by pressing down on release
pedal. At the same time, pump foot lever three or
four strokes. Do this three or four times. Then place
some weight on the platform or forks and pump
foot lever until platform reaches its full height.
Now, lower lift six inches to a foot at a time. This
should dislodge dirt and lift should work properly.
S E C T I O N 6
SERVICE
To remove cylinder from lift:
1. Pump lift to above 12'' height and then prop plat-
form or forks up to keep it in raised position.
2. Step on release pedal and push ram down by
hand until it reaches its lowest point.
3. Slip chain off pulley and remove pulley assem-
bly.
4. Take off two bottom cap screws that hold cylin-
der in place and slide cylinder forward towards the
base legs of the lift. The cylinder can now easily
be removed.
To replace ram chevron set in hydraulic cylin-
der assembly:
1. Remove hydraulic cylinder from lift and remove
Vent Plug (Part No. M427) and Oil Level Plug (Part
No. 428) and drain oil from cylinder.
2. Clamp pump body in vise, unscrew top hex nut
and remove outer cylinder.
3. Remove inner cylinder from pump making sure
not to distort or mar cylinder. Note: Do not use
pipe wrench.
4. Remove ram and replace chevron set.
5. Push ram into inner cylinder -- chevron end last!
6. Reassemble and fill with clean hydraulic jack oil.