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 TM 5-2410-233-10
OPERATION UNDER USUAL CONDITIONS - CONTINUED
0005 00
OPERATE BULLDOZER BLADE
General Information.
1.
a.
Ensure that machine is fully warmed up before operating bulldozer blade.
b.
To raise and lower bulldozer blade, operate blade control lever as follows:
(1) Pull lever all the way back to RAISE blade.
(2) Push lever all the way forward to LOWER blade.
(3) Center HOLD position holds blade in position.
(4) To allow blade to float (follow surface contour without applying pressure), push lever all the way forward past
LOWER to detented FLOAT position.
CAUTION
When control lever is returned to HOLD position, oil stops bypassing valves, thereby reducing oil heat and
valve wear. Be sure to return lever to HOLD, when lift cylinders have reached limit of their stroke, to
prevent damage to control valve.
(5) When lift cylinders have reached limit of their stroke (either raised or lowered), return lever to HOLD position.
c.
To tilt bulldozer blade, operate blade control lever as follows:
(1) Move lever all the way left to lower left side of blade.
(2) Move lever all the way right to lower right side of blade.
(3) Move lever to middle position to HOLD tilt position.
CAUTION
When control lever is returned to HOLD position, oil stops bypassing valves, thereby reducing oil heat and
valve wear. Be sure to return lever to HOLD position, when tilt cylinder has reached limit of its stroke, to
prevent damage to control valve.
(4) When tilt cylinder has reached limit of its stroke, return lever to HOLD position.
(5) If additional tilt in blade is needed, perform Bulldozer Blade Adjustment as described below.
Bulldozer Blade Adjustment.
2.
NOTE
Bulldozer blade should never be operated with more than 1/2 in. (13 mm) of threads of tilt brace screw
exposed.
Unit Maintenance assistance is required to adjust length of diagonal braces.
a.
Digging angle of dozer blade can be changed by adjusting length of tilt brace and diagonal braces, and by using tilt
cylinder.
b.
To shorten tilt brace, unstow adjusting bar from locking loop and turn bar left.
c.
To lengthen tilt brace, unstow adjusting bar from locking loop and turn bar right.
0005 00-6
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