Group PS, Periodic Service
SM 765, Nov ’06 Planned Maintenance • PS-2-7
• Drive the truck forward in a straight line at a high
rate of speed. Listen for unusual drive train noise.
Stop truck.
• Check acceleration from a stop to top travel speed.
Acceleration should be smooth without hesitation.
Stop the truck. Repeat procedure in reverse.
• Report condition on PM report form.
Test Drive Truck with Load
N
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Conduct these tests with a rated capacity
load, if possible.
Test the truck for proper operation and drive train function
by driving the truck in both the forward and reverse direc-
tions. Drive first in a straight line and slowly through a
series of full right and left turns. Then repeat, driving in
opposite direction.
Test for correct function of the transistor control.
Check Controlled Plugging (Braking)
1. Operate the truck with parking brake set. It should
not move. Release parking brake.
2. Operaten the truck at a slow speed in a forward direc-
tion of travel. Reverse direction of travel. The truck
should slow down to a smooth controlled stop, and
accelerate normally in the opposite direction.
If plugging is as specified, then repeat the procedure
at high speed. The truck should come to a smooth
controlled stop in approximately 20 feet (6.10 mm)
with accelerator in maximum travel position.
3. Repeat the procedure at high speed with the direction
lever moved in reverse direction.
If plugging (braking) is not as specified, refer to the
adjustment instructions in Group 19 of this manual.
Report condition to designated authority.
Check Accelerator
1. After checking to see that you have a clear path
ahead, drive the truck in a straight line at a high rate
of speed in a forward direction of travel. Listen for
unusual drive train noise. Stop truck
2. Check acceleration from a stand still condition to top
travel speed. Acceleration should be smooth without
hesitation.
3. After checking to see that you have a clear path
behind, drive the truck in reverse. Check acceleration
from stand still condition through top travel speed.
Acceleration should be smooth.
Check the accelerator pedal while conducting the speed
range tests. It must move easily and smoothly throughout
the acceleration stroke and return without binding. There
should be no restriction to movement on either accelera-
tion or deceleration.
CAUTION
!
DO NOT operate lift truck if the brakes are
not operating properly. Use only brake fluid,
SAE J1703 DOT 3, for ECX / EPX brakes.
Carry Load Low & Tilt Back
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