Quantcast Chapter 2. OPERATING INSTRUCTIONS - TM-55-1730-213-120003

 

Click here to make tpub.com your Home Page

Page Title: Chapter 2. OPERATING INSTRUCTIONS
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
Chapter 1. INTRODUCTION - TM-55-1730-213-120002
Up
TM-55-1730-213-12 Jack Hydraulic Tripod 12-Ton Fixed-Height Part No. 1214-151 Manual
Next
Figure 2. Ram and Reservoir Assembly.
TM 55-1730-213-12
4. DESCRIPTION.
This manual contains overhaul instructions for the 12-Ton Fixed-Height Tripod Jack Assembly, manufactured by
Sancor, Inc., El Segundo, California, under part number 1214-151.
5. IDENTIFICATION.
The jack is an integral unit consisting of multiple extension ram and plungers, reservoir, hand pump, and three
tripod legs. Each leg is equipped with a spring-loaded caster to provide mobility when the jack is unloaded. As the load
is applied, the casters retract and permit the feet to take the load.
6. DIFFERENCE IN MODELS.
This manual covers only the 12-ton hydraulic tripod jack, P/N 1214-151. No known unit differences exist for the
model covered by this manual.
7. TABULATED DATA.
Working Pressure .................................. 2893 PSI
Manufacturer .........................................Sancor Inc.
Relief Pressure...................................... 3182 PSI
Part Number .........................................1214-151
Hydraulic Fluid
Load capacity ........................................12 tons
Above 28.9 C (-20F). .................... MIL-H-5606
Hydraulic Lift .........................................23 in.
Below 28.9 C (-20 ) 75% .............. MIL-H-5606
F
Screw Extension. ...................................3 in.
Plus Naptha 25%
Extended Height ...................................40 in.
Reservoir Capacity ................................ 1.7 Gal
Collapsed Height....................................14 in.
Weight Including Oil ............................. 207 lb.
CHAPTER 2
OPERATING INSTRUCTIONS
Section I. CONTROLS
10. VALVE BODY.
8. GENERAL.
The valve (11, figure 3), located at the lower front
This section furnishes the operator or crew with
sufficient information for proper operation of the tripod
side of the pump assembly (8), controls the return flow of
fluid from the cylinder and ram assembly.  The valve
hydraulic jack.
must be closed to raise the ram.  Opening the valve
allows fluid to flow from the cylinder to the reservoir,
9. FILLER AND VENT ASSEMBLY.
causing the ram to lower.
The air vent assembly (33, figure 2) located in the
11. HANDLE.
top of the reservoir (23) is provided to establish a zero
pressure condition in the reservoir during operation of the
The handle (1, figure 3), is actuated to give the
pump assembly, permitting a free flow of fluid. The air
pump piston the necessary reciprocating action required
vent must be closed when the jack is not in use to prevent
to force fluid into the cylinder and raise the ram.
fluid leakage and contamination of the fluid by dirt and
moisture.
Section II. OPERATION UNDER USUAL CONDITIONS
12. GENERAL.
b. Raising.
These instructions are intended for personnel
responsible for the operation of this equipment.  It is
(1) Loosen air vent (33, figure 2) and tighten
essential the operator be able to perform every operation
valve (11, figure 3).
of which the tripod hydraulic jack is capable.
(2) Actuate handle (1) to raise load.
c. Lowering.
13. OPERATING DETAILS
(1) Slowly open valve (11, figure 3) until
a. Positioning. The ground surface under the jack
desired lowering rate of speed is obtained.
shall be level.  If the ground is soft, a board shall be
(2) After ram is completely lowered, close air
placed under each foot. The jack shall be placed so that
vent assembly (33, figure 2), valve (11, figure 3), and
a line drawn through the center of two of the feet is
lower extension screw (15, figure 2).
parallel to the fuselage of the airplane or load to be lifted.
3

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

Integrated Publishing, Inc.
6230 Stone Rd, Unit Q Port Richey, FL 34668

Phone For Parts Inquiries: (727) 493-0744
Google +