Yale MPB040-E, Manual

Page: 90 / 130

Upper Link 4000 YRM 1008
5. PIN
Figure 3. Lower Link
6. Remove the roll pin retaining the lower link pin to
the fork frame. Drive the pin out of the frame using
a drift pin.
7. Remove the bushings from the lower link.
8. Remove all old lubricant. Clean and inspect all
parts. Replace all defective parts.
INSTALL
1. Install new bushings into the lower link using the
grease fitting hole as a guide.
2. Align the lower link with the fork frame and install
the lower link pivot pin. Install the roll pin to retain
the pivot pin.
3. Align the lower link with the drive frame and install
the drive frame pivot pin. Install the roll pin to retain
the drive frame pivot pin.
4. Align the pull rod and the lower link and install the
pivot pin. Install the roll pin to retain the pivot pin.
5. Lubricate the grease fittings.
6. Remove the blocks from under the forks and from
each side of the drive tire.
7. Install the battery in the battery compartment. Con-
nect the battery.
8. Turn the key to the ON position and use the lower
button to lower the lift truck to its minimum height.
9. Test the operation of the motorized hand truck be-
fore returning the truck to service.
Upper Link
REMOVE
WARNING
Put blocks under both forks and on both sides of
the drive tire. The blocks must prevent the lift truck
from falling and causing personal injury or property
damage.
1. Disconnect the battery.
2. Put blocks under both forks and on both sides of the
drive tire. See the section How to Put a Lift Truck
on Blocks.
3. Remove the drive unit compartment cover to ac-
cess the upper link. See Figure 4.
6