WORKMASTER GO-A8-PW Manuale
GO-A8-PW 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 9
VI. Pre-Start Check List 10
VII. Compressed Air Treatment 11
VIII. Opening Car Gates 15
IX. Closing Car Gates 18
X. Height Adjustment 20
XI. Storage 21
XII. Accessories 22
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 Forward/Reverse Label 5
Figure 3 Locking Pin Label 7
Figure 4 Pivot Pull Switch Label 8
Figure 5 Filter / Regulator / Lubricator (FRL) Air Control 12
Figure 6 Venturi Section of Lubricator 14
Figure 7 Height Adjustment Label 20
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-A8-PW Pneumatic Hopper Car Gate Opener. Experience has shown that the
GO-A8-PW 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 the GO-A8-PW 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-A8-PW Gate Opener Maintenance & Parts Manual
(PN: 10-00067).
The GO-A8-PW Pneumatic Hopper Car Gate Opener consists of a heavy-duty
reversible impact motor, self-closing lever control mechanism and a Rolling Cart. The
GO-A8-PW Opener is portable, rugged and capable of operating in the toughest
environment. Under recommended operating conditions and with regular maintenance,
the GO-A8-PW Opener can generate up to 13,000 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-A8-PW
Frame Dimensions 33" x 42" x 45"
Weight 308 Lbs (Shipping 460)
Working Area Required 8 – 10 Ft Minimum – Site Specific
Free Speed 1500 RPM
Working Torque Range 1000 – 13000 Ft-Lbs
CFM/PSI Free Speed 150 @ 85 PSI
CFM/PSI Impacting 114 @ 85 PSI
Air Inlet 1" NPTF
Tire Size 400 x 8 Solid Polyurethane
Anvil Size 1-1/2"
Retainer Type Socket Pin w/ O-Ring
Hose Size 1" ID
Lubrication Air Tool Oil
PH: 866.476.9217 4
Figure 1: Component Layout
(See pg 5 - 8 for details)
1
2
9
7
3
8
11
10
4 6
5
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-A8-PW. Replacing the Coupling with a quick-connect type plug will
restrict air flow to the Impactor.
2. FORWARD/REVERSE LEVER (F/R Lever)
The F/R Lever is a steel rod attached to a swivel joint providing a universal
type pivoting action. The rod, painted with enamel, has a rubber, slip-on grip
for control comfort. The F/R Lever controls the direction of rotation of the
Impactor's square drive anvil. A decal located on the Pivot Guard (Item 9)
shows the position for clockwise anvil rotation (3 O'clock position), and for
counterclockwise anvil rotation (11 O'clock position). A label attached to the
Pivot Guard, See Figure 2, shows these handle positions.
Figure 2: Forward/Reverse Label
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