Quantcast CHAPTER 6 REPAIR OF MAIN HYDRAULIC SYSTEM

 

Click here to make tpub.com your Home Page

Page Title: CHAPTER 6 REPAIR OF MAIN HYDRAULIC SYSTEM
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Rear Drag Link
Up
TM-10-3930-634-34 Truck Lift Fork; Diesel Engine Pneumatic Tired Wheels Rough Terrain 6 000 Lb. Capacity 24 Load Center Anthony Model MIT 6-2 Manual
Next
Hydraulic Tilt Cylinder - TM-10-3930-634-340208
TM 10-3930-634-34
CHAPTER 6
REPAIR OF MAIN HYDRAULIC SYSTEM
Section I. HYDRAULIC VALVES, HYDRAULIC CYLINDERS, HYDRAULIC
RESERVOIR AND HYDRAULIC MANIFOLD
6-1. General
pump. The correct pressure is 2000-2100 psi. Adjust
the pressure setting at the valve as necessary to obtain
This section contains information on the maintenance
the correct reading at the hydraulic pump.
of the hydraulic valves, hydraulic cylinders, hydraulic
reservoir and hydraulic manifold that is the responsi-
6-3. Two-Spool Valve
bility of direct support and general support mainte-
nance personnel.
a. General. The two-spool valve controls the side
WARNING
shift and oscillating operations.
Relieve oil pressure by operating controls
b. Removal.
with engine OFF before opening lines or con-
(1) Tag all lines for identification before removal
nections.
to assure proper reassembly.
NOTE
(2) Remove the console panel at the right of the
Tag all hydraulic lines before removing them.
driver's seat to gain access to the valve.
After removal, cap or plug all openings to
(3) Refer to figure 6-3 and remove the two-spool
valve.
prevent the entrance of dirt.
c. Disassembly. Refer to figure 6-4 and disassemble
the two-spool valve.
6-2. Three-Spool Valve
d. Cleaning and Inspection.
a. General. The three-spool valve controls the lift,
(1) Clean all parts carefully, using solvent
tilt, and extension operations.
P-D-680 or equal.
b. Removal.
(2) Inspect the plunger (6, fig. 6-4) and the pilot
(1) Tag all lines for identification before removal
seat (7) for nicks, burrs and scratches.
to assure proper reassembly.
(3) Inspect the spool (32) for scratches and other
(2) Remove the console panel at the right of the
damage.
driver's seat to gain access to the valve.
(4) Inspect all other parts for distortion,
(3) Refer to figure 6-1 and remove the three-spool
scratches, burrs and other damage.
valve.
(5) Inspect all tubing and linkage for breaks and
c. Disassembly. Refer to figure 6-2 and disassemble
bends.
the three-spool valve.
(6) Replace all defective parts.
d. Cleaning and Inspection.
e. Reassembly. Refer to figure 6-4 and reassemble
(1) Clean all parts thoroughly using solvent
the two-spool valve.
P-D-680 or equal.
f. Installation. Refer to figure 6-3 and install the
(2) Inspect the pilot plunger (20, fig. 6-2) and the
two-spool valve.
pilot seat (21) for nicks, burrs, and scratches.
g. Adjustment. Check the pressure at the hydraulic
(3) Inspect the spool (32) for scratches and other
pump. Correct pressure is 2100 psi, + or 25. Adjust
damage.
the pressure setting at the valve as necessary to obtain
(4) Inspect all other parts for distortion,
the correct reading.
scratches, burrs, and other damage.
CAUTION
(5) Inspect all tubing and linkage for breaks and
Do not adjust pressure too high or damage
bends.
will occur to brake applicator valve.
(6) Replace all defective parts.
e. Reassembly. Refer to figure 6-2 and reassemble
6-4. Dual Overcenter Relief and Replen-
the three-spool valve.
ishing Valve
f. lnstallation. Refer to figure 6-1 and install the
a. Removal.
three-spool valve.
(1) Remove the console panel at the right of the
g. Pressure Check. Check pressure at the hydraulic

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.