TM 5-3800-205-10-1
OPERATION UNDER USUAL CONDITIONS - CONTINUED
0005 00
LOADING SCRAPER - CONTINUED
NOTE
Maintain engine RPM high (not to exceed 2450 RPM) for fast hydraulic action. Maintain proper gear to pre-
vent tire slip in rocky or abrasive material.
5.
Select proper transmission gear speed for loading material:
a.
Load in 1st gear under the following conditions:
(1) novice operator;
(2) tough materials;
(3) short distance pickup; and
(4) picking up windrows.
Load in 2nd gear for most materials or if an experienced operator.
b.
CAUTION
Do NOT place differential lock control in LOCK position while a wheel is spinning. Do NOT turn machine
with differential locked. Turning machine with differential locked will cause excessive slip and wear to tires;
torque wrap in transmission will also cause tractor to "hop".
6.
As required, move differential lock control to LOCK position.
7.
Start elevator. Select appropriate speed for material being loaded:
NOTE
Low elevator speed is suitable for most loading operations. Select high-speed elevator operation to reduce
amount of bulldozing of material in front of elevator, to load "dead" materials (e.g. heavy sand), or to mix/
rototill material to be loaded (so that it may be compacted more readily at fill site).
a.
Use low speed for hard or coarse material.
b.
Use high speed for soft material.
8.
Maintain engine speed at full throttle when cutting.
CAUTION
Do NOT push load scraper. Pushloading scraper will cause excessive bull dozing of material in front of ele-
vator, resulting in damage to elevator and hydraulic system.
NOTE
Cut should be shallow enough for machine to move ahead at a constant speed. If cut is too deep, engine will
labor or lug down. Excessive tire slippage may occur.
Depth of cut can be gauged by observing depth of penetration of side router bits.
9.
Lower bowl to cutting depth that is efficient for loading material and start cut. Do NOT force material into bowl. Allow
material to be swept into bowl by elevator action.
a.
Decrease cutting depth if engine begins to labor or if tires slip.
b.
10. Drive machine in a straight line during cut.
0005 00-10
