WORKMASTER GO-A13-HA Manuel
GO-A13-HA Gate Opener
OPERATOR's GUIDE
PH: 866.476.9217
WORKMASTER disclaims any liability for injuries, death or damages arising directly or
indirectly, from the use, operation or application of this product not in accordance with
the procedures, specifications and recommendations contained in this owner’s manual.
The user of this product is responsible to install, maintain and operate the product and
parts or components manufactured or supplied by WORKMASTER in such a manner as
to comply with all federal, state and local rules, ordinances, regulations and laws,
including the Williams-Steiger Occupational Safety Act, and the American National
Standards Institute Safety Code.
PH: 866.476.9217
SYMBOLS
The following symbols are found throughout this Operator's Guide to alert the reader to
the relative danger that may result from non-observance.
This indicates a situation in which a hazard is
imminent and will result in a high probability of serious
injury or death.
This indicates a potentially hazardous situation, which
could result in minor to moderate injury.
CAUTION
This indicates a potentially hazardous situation or
unsafe practice which could result in product or
property damaged.
IMPORTANT
This symbol indicates a general statement to assist the
user in the operation or maintenance of the
equipment.
PH: 866.476.9217
TABLE OF CONTENTS
SECTION PAGE
I. Introduction 1
II. Safety 2
III. Required Materials 2
IV. Specifications and Components 3
V. Air Requirements 8
VI. Pre-Start Check List 9
VII. Compressed Air Treatment 10
VIII. Opening Car Gates 14
IX. Closing Car Gates 18
X. Storage 20
XI. Accessories 21
Appendix A Troubleshooting A-1
Appendix B Compressed Air System B-1
Appendix C Air Supply Piping C-1
PH: 866.476.9217
LIST OF FIGURES
FIGURE PAGE
Figure 1 Component Layout 4
Figure 2 Pivot Pull Switch Label 6
Figure 3 Locking Pin Label 7
Figure 4 Filter / Regulator / Lubricator (FRL) Air Control 10
Figure 5 Venturi Section of Lubricator 13
Figure 6 Height Adjustment Label 15
Figure 7 Direction of Rotation 16
LIST OF TABLES
TABLE PAGE
Table 1 Technical Specifications 3
PH: 866.476.9217 1
I. INTRODUCTION
Fast, safe and economical unloading of covered hopper cars continues to be a problem
at most unloading sites. One of the biggest contributors to this problem is the often
time-consuming and difficult job of opening and closing bottom gates or doors of these
hopper cars. Load compaction, weather conditions, age, abuse, or corrosive or gritty
bulk materials can combine to prevent gate mechanisms from operating smoothly.
Regardless of cause, the costs associated with the problem are significant. Delays in
emptying the hopper cars means slow car turnaround, increased demurrage costs, and
interrupted production schedules. Even more importantly, the chance of worker injury is
high since at many unloading sites, clumsy or dangerous makeshift tools are used
during the “fight” to open a stubborn gate.
To meet our commitment of “WE FIND A WAY – OR MAKE ONE®”, WORKMASTER
has developed a line of Hopper Car Gate Openers and accessories which provide a safe,
efficient and economical solution to the problem of opening easy, medium and hard-to-
open hopper car gates.
There are pneumatic, electric and manual units available producing 1,000 to 13,000 ft.
lbs. of torque to eliminate the need for "cheater” bars, sledge hammers, jacks and other
improper tools sometimes used on this difficult job.
This Operation Manual details the specifications, operation, maintenance and safe use
of the GO-A13-HA Pneumatic Hopper Car Gate Opener. Experience has shown that
the GO-A13-HA Opener will open the most difficult car gates. However, the same
experience demonstrates that total satisfaction in use depends on attention to detail in
operating and maintaining the unit.
IMPORTANT
All persons involved in the operation and
maintenance of this equipment should be
thoroughly familiar with the contents of this
manual.
PH: 866.476.9217 2
II. SAFETY
To prevent injury to yourself or others, and/or damage to equipment, you should
adhere to the following basic safety instructions.
1. Read carefully the entire Operator's Guide prior to installing or operating
equipment.
2. Always follow proper precautions and use proper tools and safety equipment.
3. Be sure to receive proper training.
4. Always use the equipment and all its components in applications for which
they are approved.
5. Be sure to assemble all components correctly.
6. Never use worn, defective or damaged components.
7. Practice good housekeeping at all times, and maintain good lighting around
all equipment.
8. Perform Lock-out/Tag-out procedure on all energy sources to the equipment,
mounting structure, loading and discharge systems in accordance with ANSI
Standards before installation or maintenance.
III. REQUIRED MATERIALS
The following items are not supplied with your WORKMASTER Gate Opener but are
necessary for its proper installation and operation.
CLEAN and DRY compressed air capable of supplying 114 CFM @ 85 PSI
High-quality air hose: 1" ID, preferably fitted with a Universal (Chicago
type) coupling.
PH: 866.476.9217 3
IV. SPECIFICATIONS AND COMPONENTS
To operate to GO-A13-HA effectively the user should be familiar with each of the Gate
Opener's components. See Figure 1 for a Component Layout, and the separate
WORKMASTER GO-A13-HA Gate Opener Maintenance & Parts Manual
(PN: 10-00069).
The GO-A13-HA Pneumatic Hopper Car Gate Opener consists of a heavy-duty
reversible impact motor, self-closing lever control mechanism and a Rolling Cart. The
GO-A13-HA Opener is portable, rugged and capable of operating in the toughest
environment. Under recommended operating conditions and with regular maintenance,
the GO-A13-HA Opener can generate up to 13000 ft./lbs. torque. The Impact Motor is
air driven and requires a source of clean, dry compressed air for operation.
Every user should be aware of the technical specifications and operating characteristics
shown below in Table 1.
Table 1: Technical Specifications
CHARACTERISTICS
GO-A13-HA
Frame Dimensions
40"L x 42"W x 44"H
Handle Width
29"
Weight
361 Lbs (Shipping 520 Lbs)
Working Area Required
8 -10 Ft
Working Torque Range
1000 –13000 Ft-Lbs
Free Speed
1500 RPM
CFM/PSI Free Speed
148 @ 85 PSI
CFM/PSI Impacting
114 @ 85 PSI
Inlet Coupling
Universal Style w/ Safety Lock Pin
Wheel Assembly
16" Dia w/ 4.80 / 4.00 –8" Flat-Free
Solid Polyurethane w/ ribbed tread
Anvil Size
1-1/2"
Lubrication
Air Tool Oil
Retainer Type
Socket Pin w/ O-Ring
Hose Size
1" ID
Height Adjustment
Pneumatic Adjustments 10" –24"
PH: 866.476.9217 4
Figure 1: Component Layout
(See pg 5 - 8 for details)
11
10
1
2
4
5
6
7
8
9
3
PH: 866.476.9217 5
COMPONENT LAYOUT DESCRIPTIONS
(See Figure 1, pg 4)
1. AIR INLET
The air inlet is a 1" NPT opening with a full-port, Universal (Chicago type)
Coupling. The Coupling supplied is the recommended fitting for the
GO-A13-HA. Replacing the Coupling with a quick-connect type plug will
restrict air flow to the Impactor.
2. THROTTLE VALVE
The Throttle Valve is a self-closing, lever-operated valve that is attached to
the right hand side of the frame on the Handle Assembly. The Throttle Valve
has a spring loaded lever, which shuts off air to the Impactor as soon as the
throttle is released. Only when the Throttle Lever is depressed will the
Impactor be activated.
3. PIVOT PULL SWITCH
The Pivot Pull Switch is a pneumatic actuated valve that controls the
movement of the GO-A13-HA's wheels. When the Switch is in the PIVOT
position, the wheels will rotate so that they are parallel to the railcar. When
the Pull Switch is in the STRAIGHT position, the wheels will move
perpendicular to the railcar. The label located on the Pivot Guard, See
Figure 2, shows the Pull Switch position for the desired wheel movement.
4. HEIGHT ADJUSTMENT LEVER
The Height Adjustment Lever is a pneumatic valve that controls the
movement of the GO-A13-HA's Impactor. When the Lever is pulled toward
the Operator the Impactor will rise to a max height of 24 inches off the
ground. By pushing the Lever away from the Operator of the Impactor will
lower to a minimum height of 10 inches off the ground. Once the Lever is
released the vertical lift cylinders mounted on either side of the chassis will
hold the Impactor in place to accommodate varying height capstans.
5. FORWARD/REVERSE LEVER (F/R Lever)
Located in the rear of the Impactor (closest to the operator), the F/R Lever
controls the direction the Impactor will turn.
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