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Summary of Contents for CapstanAG SharpShooter
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Control Pressure Independent of Rate and Speed ® SharpShooter Product Manual C w L 4225 Kirklawn Ave. • Topeka, KS 66609 • (855) 628-7722 www.CapstanAg.com SharPShooter® aG technical Manual 118156-001 (10.8.2013)
• Always dispose of empty containers according to • Installation must be performed by a person who is the manufacturer’s directions. familiar with all local, state, and federal laws. ® SharpShooter Technical Manual...
INTRODUCTION SharpShooter Spray System The SharpShooter Spray System Technical Manual is intended to assist operators and service personnel in the proper installation, operation, maintenance and troubleshooting of the SharpShooter Spray System. Some of the following steps should only be performed by trained service personnel, these sections are clearly marked.
SharpShooter Kit Figure 1 Boom Section Module boxes [Figure 2] are marked for each boom section. Boom Section Module contents may contain: The SharpShooter kit ships in a box [Figure 1] that • Valve Driver contains the following marked boxes: •...
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INTRODUCTION CONT. SharpShooter Kit Cont. Although the installation is usually straightforward, the following are common installation oversights: Never connect more than 15 nozzle valves to a single Valve Driver. When routing nozzle harnesses through the boom fold and swing joints, skip two nozzle harness pigtails.
The Rotary Switch has twelve detent positions: Close, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 and Open. NOTE: The Pulse Generator has a 10 AMP. fuse (Item 4) [Figure 4] in the power lead. ® SharpShooter Technical Manual...
NOTE: When a boom section contains more than 15 nozzle valves, a second Valve Driver is required. Also, a 6-pin Y-adapter harness is required to connect the two Valve Drivers together, see Y-Adapters on page 14. ® Technical Manual SharpShooter...
SharpShooter uses this signal to turn on and off the nozzle valve assemblies. These assemblies are located on the boom section spray tubes. When the signal wire is powered up, 12V dc, the nozzle valves open.
“White” / “Green” wire alternation cannot be maintained. If required, the nozzle alternator harness is installed between the Valve Driver and nozzle valve harness. SharpShooter pulses Nozzle Valve Assemblies [Figure 13] to maintain a constant boom and tip pressure.
The circuit breaker kit is installed for circuit protection in disconnecting of the battery power wires is desired. the Power Hub power cable, which provides battery power to the SharpShooter system. Pressure Sensor Breakout Harness Figure 18 Circuit...
PARTS IDENTIFICATION CONT. SharpShooter Parts List ® Technical Manual SharpShooter...
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PARTS IDENTIFICATION CONT. SharpShooter Parts List Cont. ITEM NO. PART NO. DESCRIPTION QTY. 118500-002 Pulse Generator, PWM/PSI 118600-007 Power Hub, 7 Section 0 - 2 118400-002 Valve Driver, 6-Pin Tower AS Req. 116301-001 Pressure Sensor Assembly, 100 PSI 0 - 1...
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PARTS IDENTIFICATION CONT. SharpShooter Parts List Cont. ITEM NO. PART NO. DESCRIPTION QTY. Not Shown 116200-079 Plug 6-Pin Shroud As Req. Not Shown 116200-032 Y-Adapter Harness 3 cond As Req. Not Shown 620185-001 Pressure Break-Out Harness 3 Pin 118703-001 Installation Kit, SharpShooter...
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PARTS IDENTIFICATION CONT. Boom Shutoff Adapters (Identification) Cont. Shutoff Adapter RoGator 120 ft x 7 Sections 118602-012 Shutoff Adapter, RoGator 90 ft and 100 ft x 5 Sections 118602-013 ® SharpShooter Technical Manual...
SharpShooter is the PSI mode (Item 2). When the rocker switch (Item 1) [Figure 20] is in the PSI mode the SharpShooter will pulse the nozzle valves at a duty The SharpShooter Pulse Generator has one rocker cycle percentage. The result will be indicated in the (Item 1) and one rotary switch (Item 2) [Figure 19].
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Indicator Light - The indicator light (Item 3), which is 20 (Yellow) 80 (Yellow) located in the rocker switch (Item 1) [Figure 21], will be 30 (Green) 10. 90 (Red) on when power is supplied to the SharpShooter system. 40 (Green) 11. 100 (Red) 50 (Green) 12. OPEN Valves...
Ranges Operator Controls Cont. Typically, chemical rates vary within a 2:1 rate range. The SharpShooter is especially useful in solving the To achieve that range of application rate with a single following three basic spraying problems: tip, select the appropriate spray tip size, style and pressure for the coverage desired at the highest 1.
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Speed and Pressure techniques by using a nozzle chart. Put the rate controller in manual mode and the SharpShooter in PWM mode. Change the duty cycle percentage to meet the flow requirement from the speed and pressure calculation.
Run / Hold - In PSI mode, the SharpShooter will stop controlling pressure when the boom is turned off and the run / hold signal is removed. When the boom is...
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Flow meter settings include pulsing valve size, tip size, valve count, boost tip size and specific gravity. Hour Meter - The SharpShooter has an internal hour meter that records the total time that the SharpShooter pulsing nozzles have been operating.
Circuit Board Switch Positions To access the Pulse Generator circuit board setups, remove the four screws from the Pulse Generator and lift the lid away from the back panel. Reference the SharpShooter Pulse Generator internal circuit board switches and their proper settings below: The four “dip”...
An 80-mesh screen is recommended to prevent nozzles from plugging. Figure 24 Check the mesh size of the strainers [Figure 24] and replace the screens if they are too coarse. NOTE: Use 80-mesh or finer strainer screens. ® Technical Manual SharpShooter...
Case AIM Command Blended Pulse Spray Systems. (For additional information contact your Synchro, SharpShooter, or Case AIM Command dealer. Over the years, Capstan's field engineers have received many questions about blended pulse spraying, and its potential for causing skips in the field. In rare instances, skipping has been documented in the field. This technical bulletin is intended to explain pulse blending, and the techniques used to provide optimum spray coverage and to prevent skipping.
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/ mature weed pressures, etc. 5. Always apply blended pulse broadcast sprays using a 10hz or greater pulse frequency! Capstan's "Commander" module and SharpShooter Pulse Generator allow the pulse frequency to be reduced for non-sprayer applications, when uniform coverage is not required.
/ harnesses are installed on the appropriate boom sections (1 thru 3 Before installation of the SharpShooter system etc). components, make sure the machine / sprayer is clean. Flush the spray system with water and make sure that 5.
SHARPSHOOTER INSTALLATION DETAIL NOTE: The Pulse Generator has a 10 AMP. fuse in the power lead. Locate this fuse, so that the STEP 1 fuse is accessible for service. The Pulse Generator 6-Pin extension harness will be Pulse Generator Module routed from the Pulse Generator and will be connected to the Power Hub.
/ plumbing STEP 2 until the power wire reaches into the battery box. Power Hub Module NOTE: It is recommended that all SharpShooter component wiring and connections are Figure 26 completed before the Power Hub power wire battery connection is completed.
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[Figure 28] be installed near the existing Pressure Sensor or pressure gauge (in the main boom plumbing). SharpShooter’s Pressure Sensor has a male ¼” pipe thread boss. Sometimes an unused boss is available on the sprayer. It is usually necessary to remove the pressure gauge / line and install a tee (supplied with kit).
SHARPSHOOTER INSTALLATION DETAIL CONT. Figure 30 STEP 3 Boom Section Modules Figure 29 All Boom Section Module components and wiring have been previously connected and tested at the factory. The Valve Driver (Item 1), nozzle harnesses (Item 2), nozzle valve assemblies (Item 3) and 6-Pin extension harness (Item 4) [Figure 30] are included in your kit.
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SHARPSHOOTER INSTALLATION DETAIL CONT. The nozzle harness pigtail (connectors) contains a White and Black wire, while the adjacent pigtail STEP 3 CONT. (connector) contains a Green and Black wire. Boom Section Modules Cont. Figure 32 Valve Driver 15” Nozzle Spacing Figure 31 20”...
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(Item 2) [Figure 33] from the nozzle bodies valve (Item 2) [Figure 35]. on the sprayer. NOTE: When ordering the SharpShooter kit, the nozzle valve assembly threaded cap is unique to different brands of nozzle bodies. Be sure to have identified the nozzle body types being used on the sprayer.
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NOTE: If interference issues arise when installing nozzle valves onto the sprayer nozzle bodies, see Special Installation Instructions on page 54. NOTE: Once the SharpShooter system installation is complete, the SharpShooter system is The 6-pin Y-adapter harness [Figure 38] has two ready for testing. See INSTALLATION functions: SYSTEM TEST on page 57.
SHARPSHOOTER INSTALLATION DETAIL CONT. The connector (Item 1) [Figure 40] White wire (position C) must connect to the nozzle harness on the first STEP 3 CONT. nozzle valve of the White alteration. Power Disconnect Kit (Optional) Boom Section Modules Cont.
SHARPSHOOTER INSTALLATION DETAIL CONT. Figure 43 Special Installation Instructions Nozzle Valves WARNING Before removing or installing the nozzle valves, make sure that the pressure has been released from the sprayer lines. NOTE: The special installation instructions show the interference issues that occur on some model sprayers.
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SHARPSHOOTER INSTALLATION DETAIL CONT. Figure 45 Special Installation Instructions Cont. Nozzle Valves Cont. Figure 44 Install the female coupler (Item 1) and a male threaded barb (Item 2) [Figure 45]. Tighten the hose clamps (Item 3) [Figure 45]. Once the quick coupler boom tube fitting is removed...
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SHARPSHOOTER INSTALLATION DETAIL CONT. Figure 47 Special Installation Instructions Cont. Pressure Sensor NOTE: Instructions are shown for the Pressure Sensor installed onto a sprayer. Installation procedures for your sprayer may be slightly different. NOTE: The Pressure Sensor must be installed vertically, with the Pressure Sensor up.
6. Turn the rotary switch to 20 to observe an increase in pressure. 7. Turn the rotary switch to 80 to observe a decrease in pressure. ® SharpShooter Technical Manual...
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If all tests are successful, your machine is ready to use. 4. Place the rocker switch in the PSI mode. If all tests are successful, the SharpShooter system is 5. Turn the rotary switch to 40. now ready for field operation.
Connect the serial cable into both the 9-pin pigtail on the SharpShooter Pulse Generator and the USB port to the computer. If the Pulse Generator is an older version without the 9-pin pigtail, remove the cover to locate the 9-pin connector.
PROGRAMMING PARAMETERS CONT. Program Information If the Capstan Diagnostic Tool is running and the SharpShooter Pulse Generator is powered up in the PWM mode, a header file will open and display a message that the EEPROM information is valid. == TermTestEEprom () == -Valid Data in EEPROM Next, the header file should describe the program version data and the hour meter value.
PROGRAMMING PARAMETERS CONT. Circuit Board Switch Positions The SharpShooter Pulse Generator internal circuit board switches and their proper settings are listed below: The four “dip” Switches for Switch S1 (Item 1) should be set to the following positions: • S1 - 1 OFF •...
PROGRAMMING PARAMETERS CONT. Next a header file will scroll forward to confirm the hardware switch position on the SharpShooter Pulse Generator circuit board. The file should display as seen below: (Values may not be correct, see the default values below): S1.x ......
PROGRAMMING PARAMETERS CONT. PWM Mode In PWM mode, the SharpShooter prints a line of data each time that the set-point knob is turned to a new position, this is shown below: PwmMode: New Pos: 4 EVEN: 39.84 ODD: 39.84 PwmMode: New Pos: 5 EVEN: 49.61 ODD: 49.61 PwmMode: New Pos: 6 EVEN: 59.77 ODD: 59.77...
Toggle Digital output p. Pressure Shutoff Limit q. Quit Pressure control is suspended whenever the SharpShooter is in menu mode. To re-establish control, exit the menu mode by pressing “q” for quit, and data will begin scrolling as previously described. ®...
Pots = Disabled Press a key to exit • “PID Proportional Gain” establishes the speed in which the SharpShooter changes the pressure. A higher number results in faster control. • “PID Integral Gain” establishes the acceleration in which the SharpShooter changes the pressure. A higher number results in faster control.
"Txd MIN Output(V)" is the Pressure Sensor signal voltage when at minimum pressure. • "Txd MAX Output(V)" is the Pressure Sensor signal voltage when at maximum pressure. • "Calc Slope(PSI/V)" is automatically calculated by the SharpShooter. ® Technical Manual SharpShooter...
Ammonia varies with temperature / pressure, but is generally around 0.60. • “Boost Tip Size” is the tip size used on the boost boom (see tip size above). The SharpShooter assumes that the boost boom is a conventional boom without pulsing nozzles. If the boost feature is enabled, the SharpShooter assumes that there are the same number of boost nozzles as SharpShooter pulsing nozzles.
Pressing “p” on the main menu initiates the pressure shutoff limit menu. The pressure shutoff limit is the pressure value below which the SharpShooter will shut off the pulsing nozzles. This allows the SharpShooter to work like diaphragm drip checks. The pressure turn-on value is different than the shutoff limit. In many cases, a pressure spike is seen when the boom turns off.
• Start with the rate controller in manual mode, this locks rate controller into a single rate, then place the 1. Perform baseline service checks and verify the SharpShooter in PWM mode at 50% (locks a fixed original SharpShooter setup programming orifice).
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PSI to PWM Comparison, see Performance Evaluation for Pulsing • Valve Calibration and PID Parameter Tweaking • Run / Hold Time to check the timing of rate control changes (in the rate controller) to the pressure control response by the SharpShooter. ® Technical Manual SharpShooter...
Check for correct function after adjustments, repairs WARNING or service. Untrained operators and failure to follow instructions can cause injury or death. Use the following troubleshooting chart to locate and correct problems which most often occur with the SharpShooter System. PROBLEM CAUSE...
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SHARPSHOOTER TROUBLESHOOTING CONT. PROBLEM CAUSE CORRECTION Rate instability SharpShooter Run / Hold Adjust SharpShooter Run / Hold Parameter Parameter too short Faulty rate controller Replace rate controller Pressure instability Faulty rate controller Replace rate controller Worn or sticky poppets Check and replace poppets as needed...
Additional valves will result in a blown Valve Driver SharpShooter systems are comprised of a number of fuse. components. Some of these components are used in multiples.
SHARPSHOOTER TROUBLESHOOTING CONT. Figure 50 Nozzle Valves Plugged nozzle valves can be classified in two categories: • Plunger blockage. • Plunger stuck. Plunger blockage results when larger debris catches between the orifice and the plunger seal. This is the smallest flow passage within the nozzle valve.
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SHARPSHOOTER TROUBLESHOOTING CONT. Plunger Seal Inspection Nozzle Valves Cont. Figure 52 Nozzle Valve Cleaning WORN OUT WARNING Before removal or installation of nozzle valves, make sure that the pressure has been released from the sprayer lines. Figure 51 After extended use, the soft plunger seal (Item 1) [Figure 52] will wear a groove where the seal impacts the hard orifice seat.
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SHARPSHOOTER TROUBLESHOOTING CONT. Capstan recommends cleaning any plugged nozzle valves immediately. Capstan also recommends rinsing Nozzle Valves Cont. the inside of the boom with clean water and washing the outside of the coils with clean water on a as needed Coil Failure basis.
Connect the Pulse Generator (Item 1) to the Power Hub, turn the rotary switch (Item 2) [Figure 54] to 50 and then place the SharpShooter in PWM mode by pressing the rocker switch downward. Check to see that the rocker switch light is flashing two times per second.
Disconnect the Pulse Generator from the extension harness by disconnecting the 6-pin connector. The Turn OFF the SharpShooter Pulse Generator, and then connector is generally located in the cab. turn ON all boom sections.
SHARPSHOOTER TROUBLESHOOTING CONT. Valve Driver Voltage Check Disconnect the Valve Driver from the extension harness by disconnecting the 6-pin Packard connector. the connection is generally located at each boom section. Figure 59 Battery Voltage Check Valve Driver End on the Power Hub...
SHARPSHOOTER TROUBLESHOOTING CONT. Pressure Sensor Input Power Check Disconnect the pressure sensor 3-pin connector from the Power Hub harness, and then insert the Capstan pressure breakout harness diagnostic tool. Figure 60 Pressure Sensor Power Hub Harness (Shroud Connector) (Tower Connector)
SHARPSHOOTER TROUBLESHOOTING CONT. Pressure Sensor Signal Test Disconnect the pressure sensor 3-pin connector from the Power Hub harness and then insert the Capstan pressure breakout harness diagnostic tool. With the engine running and the pump turned on, use the spray rate controller to establish 40 PSI on the pressure gauge.
SHARPSHOOTER TROUBLESHOOTING CONT. Make the same measurement between pins B and E. This tests the odd pulse. Pulse Circuit Test If accurate voltage is not found: Pulse Generator Output Check • Check the Valve Driver extension connections. Disconnect the Valve Driver from the extension •...
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• Check the Pulse Generator serial diagnostics. Place the SharpShooter Pulse Generator in the PWM mode and select 70 on the rotary switch. The rocker switch light should flash two times per second. Turn ON the boom section, corresponding to the nozzle harness pigtail (connector) being tested.
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SHARPSHOOTER TROUBLESHOOTING CONT. If the boom sprays, but does not pulse, when the jumper wire is tapped: Valve Driver Input Check • Check the Power Hub Pulse Generator extension Disconnect the Pulse Generator from the extension connection. harness by disconnecting the 6-pin Packard connector •...
SHARPSHOOTER TROUBLESHOOTING CONT. If no spray or voltage is observed: Boom Shutoff and Run / Hold Signal Test • Check the boom shutoff adapter connections. • Check the boom shutoff extension connections. Run / Hold Signal • Check the Valve Driver extension connections.
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SHARPSHOOTER TROUBLESHOOTING CONT. Valve Driver Shutoff Signal Disconnect the Valve Driver from the extension harness by disconnecting the 6-pin Packard connector. The connector is generally located at each boom section. Turn ON the boom shutoff switch that corresponds with the Valve Driver extension being tested.
SHARPSHOOTER TROUBLESHOOTING CONT. Rotary Switch Rocker Switch Remove the Pulse Generator cover by removing the four corner screws. Disconnect the rotary switch from Remove the Pulse Generator cover by removing the circuit board disconnecting 14-pin four corner screws. Disconnect the rocker switch from connector.
SHARPSHOOTER TROUBLESHOOTING CONT. Circuit Board Setup To access the Pulse Generator circuit board setups, remove the four screws from the Pulse Generator and lift the lid away from the back panel. S1 Dip Switch (Item 1) • #1:OFF = DB9 Power •...
Verify that the valve opens with a rate increase. • Verify that the valve closes with rate a decrease. 9. Top PWM value set too low • Adjust the rate controller PWM valve to the desired setting. ® SharpShooter Technical Manual...
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Nozzle Spacing in inches / (5940 x 128). 6. Controller Pressure Instability • To isolate SharpShooter from rate controller, put Oz / min per nozzle = G/1000 ft² x Test Speed in the SharpShooter in PWM mode at 50%. mph x Nozzle Spacing in inches / (136 x 128).
Make sure all hoses and wiring is secure. • Check for loose hoses, mounting hardware and components. Tighten if necessary. • Disconnect the rate controller and SharpShooter power wires before jump starting or welding on the sprayer. • Check for damaged or missing decals. Replace decals if damaged or missing.
(30) days after expiration of the warranty period which is applicable to the defective product. The applicable time periods are set forth in the above warranty term. Any breach of warranty claim not timely made will not be honored by the Seller and will be of no force and effect. ® SharpShooter Technical Manual...
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The Buyer expressly agrees that it will not assert any rights to property rights retained herein by the Seller. ® Technical Manual SharpShooter...
Toll-free number: (855) 628-7722 Topeka Office Phone: (785) 232-4477 Topeka Office Fax: (785) 232-7799 Hours: 8 a.m. - 4:30 p.m. CST On-Line: www.CapstanAg.com Orders@CapstanAg.com Upon receipt of the part in question, the part will be evaluated for warranty, then repaired and returned. ®...
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