Yale MPB040-E, Manual

Page: 42 / 130

Control Handle
DISASSEMBLE
NOTE: It is not always necessary to remove and dis-
assemble all the components that make up the control
section of the steering handle to replace a damaged
part. Perform only the steps necessary to replace the
damaged parts. See Figure 16.
1. Move the lift truck to a safe, level area and block
the drive wheel to prevent movement of the lift
truck.
2. Turn the key switch to the OFF position and dis-
connect the battery.
3. Discharge the capacitor. See Special Precau-
tions.
NOTE: The handle is comprised of two molded-plas-
tic halves and is held together by three capscrews.
4. Remove the three capscrews retaining the upper
half of the control handle to the lower half.
5. Disengage the hooks under the auto-reverse
switch. Slide the upper half off of the lower half
using a gentle rocking motion while lifting and
pulling the upper half away from lower half. See
Figure 16.
6. Unplug the handle wiring harness from the control
handle card.
7. Place upper half of the handle upside down on a
secure, level work surface so the internal parts
are facing up.
8. Remove lower half of the cover (only if damaged
or needs replacing) from the control handle shaft
by removing two capscrews.
NOTE: Make note of the position of the butterfly
knobs relative to the handle BEFORE removal.
9. Remove one of the butterfly knobs by removing
the screw that holds it on the shaft.
10. Using the remaining butterfly knob, slide the shaft
out of the handle. Be careful not to rotate the
shaft within the control handle card.
11. Refer to the wiring diagram, or draw a sketch of
where each of the push button switches are plug-
ged into the control handle card. Unplug switches
from the control handle card and remove the card.
CONTROL HANDLE CARD (OLD STYLE)
After servicing the control handle head, it is necessary
to calibrate the control handle card. If replacing with a
new style card (usually blue in color), refer to Control
Handle Card (New Style).
1. Install the control handle card in the upper half of
the control handle.
NOTE: When inserting knobs make sure that flange
on one of the butterfly knobs inserts between the
spring on the control handle.
2. Slide shaft and butterfly knob into the control han-
dle card. Be careful not to rotate the shaft inside
the control handle card.
3. Connect the switches and wire harness connec-
tors.
4.
Install the remaining butterfly knob. Apply Loctite
®
242 to the screw attaching the butterfly knob onto
the upper half of the handle and tighten the screw
to 1 N•m (9 lbf in).
5. Lubricate friction points on the butterfly knobs with
silicone spray lubricant.
6. Connect the battery.
7. Move the jumper on the J1 terminal to the cali-
brate mode. See Figure 12, view B.
Control Handle 2200 YRM 1007
18