Hunter G835 Owner's Manual
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Hunter G835 Owner's Manual

Tts golf rotor
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TTS Golf RoToR oWNERS MANUAl
InstallatIon, operatIon & servIcIng technIques
for g835, g870, g875, g880, g990 & g995 rotors

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Paul
May 23, 2025

Do different color jets alter the throw of the G800 pop up

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1 comments:
Mr. Anderson
May 25, 2025

Yes, different color jets (nozzles) affect the throw distance of the Hunter G835 pop-up sprinkler. The G80 riser used in the G835 model has three color-coded nozzles: black (short-range), blue (mid-range), and one for long-range. Each color represents a nozzle with a different throw distance.

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Summary of Contents for Hunter G835

  • Page 1 TTS Golf RoToR oWNERS MANUAl InstallatIon, operatIon & servIcIng technIques for g835, g870, g875, g880, g990 & g995 rotors...

  • Page 3: Table Of Contents

    Table of conTenTs IntroductIon ....................................... 1 ModelIng nuMberIng systeM ................................ 2 InstallatIon and operatIon ................................3 pipe connections – all Models ..............................3 solenoid connections – electric VIH Models ..........................4 on-auto-off selection – electric VIH Models ..........................5 control tubing connections – c.o.M Models converted to Hydraulic configuration ............6 rIser serVIcIng and adjustMents ..............................

  • Page 4: Introduction

    Hunter’s tts rotors including models g835, g870, g875, g880, g990 and g995. For the latest information, specifications and the location of the distributor near you, visit the Hunter golf website at www.huntergolf.com. additionally, Hunter technical services can be contacted at...

  • Page 5: Modeling Numbering System

    TTS RoToRS – All ModelS Hunter tts golf rotors are available in two basic body styles. these are the g800 series and the g900 series rotors. each of these body styles is available in either the check-o-Matic valve configuration (c.o.M.) or, the electric Valve- In-Head (e.V.I.H.

  • Page 6: Installation And Operation

    • PVC swing joints with a 1½ inch male Acme outlet fitting. • Approved flexible swing joints with a 1½ inch male Acme outlet fitting. • R eplace the final fitting of the existing swing joint with a 1½ inch male Acme outlet fitting (fitting must be the same brand as swing joint). • U se the appropriate Hunter Acme Adapter fitting. These are available from Hunter distributors in various NPT and BSP sizes. (Teflon™ tape or PVC cement must be used between the connecting NPT or BSP threads) Following are the minimum recommended swing joint sizes for tts rotors. However, follow your Irrigation consultant’s recommendations where applicable: • G835 Series rotors – 1 inch swing joint with a 1½ inch Acme outlet fitting • G870 Series rotors – 1¼ inch swing joint with a 1½ inch male Acme outlet fitting...

  • Page 7: Solenoid Connections - Electric Vih Models

    Solenoid ConneCTionS – eleCTRiC ViH ModelS tts electric Valve-In-Head models have solenoid lead wires protruding from the rotor’s body in the traditional manner. controller field wires can be connected to the rotor, using the specified watertight wiring connectors, at this sub-surface position.

  • Page 8: On-Auto-Off Selection - Electric Vih Models

    (fig 1). several tools are available to make on-auto-oFF selections: • T-Handle Tool – PN 319100 • Hunter Wrench – PN 471720 • Snap-ring Tool – PN 251000 the on-auto-oFF selector’s function and recommended operation is as follows: auto – the selector comes from the factory in the auto position. When in this position, the rotor will not activate unless the controller sends 24 volts of power to the rotor’s solenoid.

  • Page 9: Control Tubing Connections - C.o.m Models Converted To Hydraulic Configuration

    ConTRol Tubing ConneCTionS – C.o.M ModelS ConVeRTed To HydRAuliC ConfiguRATion In hydraulic installations, the flange compartment should be used to make the Control Tubing connections to the rotor. This allows for tubing connections, pressure tests and flushing of the control lines - all without digging. Converting C.O.M. models to the Hydraulic configuration – Remove the two stainless steel screws and lift the flange compartment lid to expose the flange compartment. Find the end of the ⁄ inch tubing that comes into the flange compartment from the bottom of the rotor (fig 4). check-o-Matic (“c”) versions of tts rotors can be converted for use in normally open Hydraulic systems by removing the end cap on the ⁄...

  • Page 10: Riser Servicing And Adjustments

    RiSER SERviciNG ANd AdjUSTMENTS Caution! the riser assembly is under spring tension. eye protection should be worn and safe-handling procedures followed when servicing this product. tools needed (varies with riser model) • T-Handle Tool – PN 319100 • Hunter Wrench – PN 471720 • Snap-ring Tool – PN 251000 • Needle-Nose Pliers • Flat Blade Screwdriver • Phillips Screwdriver uPPeR SnAP - Ring ReMoVAl –...

  • Page 11: Upper Snap-Ring Removal - G900 Series

    uPPeR SnAP - Ring ReMoVAl – g900 SeRieS prior to removal of the upper snap-ring assembly, the rubberized logo cap must be removed and the riser assembly must be pressed below the snap-ring’s rubberized seal. If the procedure below is not followed, the upper snap-ring assembly cannot be removed from the g900 series rotors: remove the stainless screw from the center of the rubberized logo cap using a phillips screwdriver (fig 10).

  • Page 12: Riser Removal - All Models

    ARC AdjuSTMenT PRePARATion – g35, g75 & g95 PART - CiRCle RiSeRS all Hunter adjustable arc rotors have a fixed stop on the right side of the arc and an adjustable stop on the left side of the arc. arc adjustments can be made with the riser in hand or, after installation with the rotor not activated or, while the rotor is in operation.

  • Page 13: Arc Adjustment Procedure - G35, G75 & G95 Adjustable Part-Circle Risers

    ARC AdjuSTMenT PRoCeduRe – g35, g75 & g95 AdjuSTAble PART - CiRCle RiSeRS all adjustments are initiated by inserting the small end of the t-handle tool or the plastic end of the Hunter wrench into the riser’s adjustment socket. the adjustment socket can be found on the riser’s rubber cover by locating the circular depiction with arrows going in opposite directions (fig 24).

  • Page 14: Nozzle Replacement - G70 Risers

    (fig 29). Insert the metal end of the Hunter wrench or a ⁄ inch wrench into the membrane within the arrow that is directly above the nozzle to be replaced.

  • Page 15: Nozzle Replacement - G35 & G75 Risers

    (fig 31). Insert the metal end of the Hunter wrench or a ⁄ inch wrench into the membrane within the arrow that is directly above the nozzle to be replaced.

  • Page 16: Nozzle Replacement - G80 Risers

    nozzle RePlACeMenT – g80 RiSeRS to view and replace the nozzles, it is necessary to compress the riser spring by grabbing the riser seal assembly (fig 32), pressing downward and then holding riser firmly to prevent the spring from moving upwards. the g80 riser has three color-coded opposing nozzles.

  • Page 17: Nozzle Replacement - G90 Risers

    (turret) with three setscrews (figs 38 & 39). each setscrew has a ⁄ inch allen recess at the top. Insert the metal end of the Hunter wrench or a ⁄...

  • Page 18: Nozzle Replacement - G95 Risers

    (turret) with three setscrews (fig 40). each setscrew has a 3⁄32 inch allen recess at the top. Insert the metal end of the Hunter wrench or a 3⁄32 inch wrench into setscrew that is above the nozzle to be replaced. engage the setscrew and turn counter-clockwise until the bottom of the setscrew clears the top of the nozzle (fig 41).

  • Page 19: Riser Seal Replacement - G35, G70 & G75 Risers

    “H” and the “r” on the Hunter logo (figs 44 & 45). the phillips headed retaining screws are directly beneath these depressions.

  • Page 20: Riser Seal Replacement - G80 Risers

    RiSeR SeAl RePlACeMenT – g80 RiSeRS the g80 riser seal-block assembly and the compressed retraction spring are retained on the riser with the shroud/ logo-cap assembly. It is necessary to remove this assembly in order to service the g80’s riser seal components. to remove the shroud/logo-cap assembly, it is necessary to fully compress the riser spring by grabbing the riser seal- block assembly, pressing downward and then holding riser firmly to prevent the spring from moving upwards (fig 47).
  • Page 21         FIg 48 Fig 48 Fig 48     FIg 47 Fig 47 Fig 47 FIg 49 FIg 50...

  • Page 22: Riser Seal Replacement - G90 & G95 Risers

    RiSeR SeAl RePlACeMenT – g90 And g95 RiSeRS the g90 and g95 riser seal assembly and the compressed retraction spring are retained on the riser with the retainer cap (plastic plate) at the top of the riser assembly. It is necessary to remove the retainer cap in order to replace the riser seal components.

  • Page 23: Riser Filter Screen Servicing - All Tts Rotors

    RiSeR filTeR SCReen SeRViCing – All TTS RoToRS the riser filter screen is located at the base (bottom) of each riser. the purpose of the filter screen is to prevent entry of debris that are too large to exit the riser through the nozzles. If the filter becomes clogged with debris, water flow through the riser can be severely reduced and lead to diminished sprinkler performance. to remove the filter screen, locate the notched recessed area located on the outside where it meets the bottom of the riser (fig 54, 55, 56). Insert the snap-ring tool or a flat bladed screwdriver into the recess and then twist to lift the filter screen from its position against the riser.

  • Page 24: Stator Adjustments - Why And When Are They Needed

    STAToR AdjuSTMenTS – WHy And WHen ARe THey needed? the adjustable stator is preset at the factory to match the nozzle installed in the rotor. the purpose of the stator is to maintain a consistent and desirable speed of rotation. rotors that turn too fast cannot reach their published radius distance.

  • Page 25: Stator Adjustments - G80 Risers

    STAToR AdjuSTMenTS – g80 RiSeRS turn the riser upside down, remove the filter screen and view the stator area. notice the black part with the three sections extending outward from the center (fig 60). this black part on g80 risers is called the adjustable stator plate. beneath the adjustable stator plate is a gray non-removable part with the three openings.

  • Page 26: Stator Adjustments - G90 & G95 Risers

    STAToR AdjuSTMenTS – g90 And g95 RiSeRS turn the riser upside down, remove the filter screen and view the stator area. notice the white plastic part that is set within the bottom of the riser (fig 62). this white part on g90 and g95 risers is called the adjustable stator plate. beneath the adjustable stator plate is a black non-removable plastic part with the opening in the center for the turbine and the single opening to the side.

  • Page 27: Riser Replacement - Full-Circle Risers

    RiSeR RePlACeMenT – g35, g75 & g95 AdjuSTAble PART-CiRCle RiSeRS adjustable part-circle risers must be inserted such that the arc setting aligns to the area to be irrigated. all Hunter adjustable arc rotors have a fixed stop on the right side of the arc and an adjustable stop on the left side of the arc.

  • Page 28: Upper Snap-Ring Installation - G900 Series

    (fig 67). next, lift the riser assembly up until the nozzles can been seen above the upper snap-ring assembly (fig 68). slowly release the riser assembly downward until the riser assembly rests on top of the upper snap-ring assembly (fig 69).

  • Page 29: Inlet Valve Removal, Service And Installation

    It is important to note that there are different types of inlet valves (also commonly known as foot valves). If the incorrect inlet valve is installed, the rotor will malfunction. Hunter has a color-coding system to help correctly identify these valves: g800c check-o-Matic rotors = black screen attached to valve (fig 72) g800e electric V.I.H.

  • Page 30: Inlet Valve Removal - Disengaging The Safety Interlock Feature

    inleT VAlVe ReMoVAl – diSengAging THe SAfeTy inTeRloCk feATuRe Caution! Electric valve-in-head rotors are connected to pressurized main-line or sub-main piping. This pressurized piping must be depressurized before servicing the inlet valve. Serious bodily injury can occur if valve is removed when the piping is pressurized. Keep head and body parts away from the rotor’s exposed internal openings at all times.

  • Page 31: Inlet Valve Removal - G800 Series

    inleT VAlVe ReMoVAl – g800 SeRieS With the main-line or sub-main depressurized, the riser assembly removed, the water extracted from the body cavity and the safety interlock feature disengaged, proceed with removal of the g800’s white lower snap-ring and inlet valve as follows: First, notice that close to each end of the white lower snap-ring there are two raised areas (fig 76).
  • Page 32 Important – take note of how the g800 Valve tool nests with the attached inlet valve. this will help later when attaching the inlet valve to the tool prior to inlet valve installation. to disengage the inlet valve from the g800 Valve tool, hold the inlet valve with one hand and the tool with the other hand.

  • Page 33: Inlet Valve Removal - G900 Series

    inleT VAlVe ReMoVAl – g900 SeRieS With the main-line or sub-main depressurized, the riser assembly removed, the water extracted from the body cavity and the safety interlock feature disengaged, proceed with removal of the g900’s white lower snap-ring and inlet valve as follows: First, notice that close to each end of the white lower snap-ring there are eyelets (areas with a hole for access).
  • Page 34 to remove the inlet valve, it is necessary to align the pointer arrow on the g900 Valve tool with the alignment dot on the rotor’s flange. The alignment dot is centered on the flange compartment lid adjacent to (next to) the body cavity opening. A second alignment dot is located below the lid in case the flange compartment lid has been removed. align the pointer arrow on the tool with the alignment dot (fig 94) and lower the tool into the rotor’s body (fig 95). as the g900 Valve tool is lowered into the rotor’s body, recessed areas on the black plastic part on the tool will engage vertical rails inside the body wall.

  • Page 35: Inlet Valve Servicing - All Models

    inleT VAlVe SeRViCing – All ModelS Inlet Valves (also commonly known as foot valves) do not have serviceable internal parts and the valves are welded together as an assembly. as a result, inlet valves cannot be taken apart. any disassembly of an inlet valve will lead to a valve that is no longer usable.

  • Page 36: Inlet Valve Installation - Safety Warnings

    Attention! Read and understand the inlet valve installation instructions outline below. If you are unsure or not clear on any portion of the installation procedure, contact your local Hunter Golf Distributor Representative or Hunter Technical Services can be contacted at 800-733-2823 and choose option #3.
  • Page 37 to install the inlet valve into the rotor’s body, first load the white lower snap ring to the tool. Hold the white lower snap ring in the palm of one hand with the raised protruding ends of the snap ring facing towards you (fig 103). In the other hand hold the g800 Valve tool with the metal hook end of the tool pointing towards you.
  • Page 38 next, insert the assembled tool, white lower snap ring and inlet valve into the rotor’s body cavity. to do so, it is necessary to align the pointer arrow on the G800 Valve Tool with the alignment dot on the rotor’s flange. The alignment dot is centered on the flange compartment lid adjacent to (next to) the body cavity opening (fig 107). A second alignment dot is located below the lid in case the flange compartment lid has been removed. Align the pointer arrow on the tool with the alignment dot and lower the assembled tool, white lower snap ring and inlet valve into the rotor’s body.
  • Page 39 Inlet valve installation option 2 – the alternative method to installing the g800 inlet valve is to use the 16” needle-nose pliers tool. First look at the top of the inlet valve and notice the raised wall or rib that protrudes upward from the center.
  • Page 40 With the valve’s communication port and/or the slot feature aligned to the dot on top of the rotor, carefully lower the inlet valve into the rotor’s body. If the inlet valve is properly engaged with the vertical rail in the body, it will not be possible to rotate the inlet valve.

  • Page 41: Inlet Valve Installation - G900 Series

    inleT VAlVe inSTAllATion – g900 SeRieS remove excess water from the rotor’s body cavity. Inspect the upper and lower snap ring grooves making sure there are no damaged or missing sections of plastic adjacent to (next to) the snap ring grooves. remove all plastic shavings or burrs of plastic that are found within the body cavity.
  • Page 42 to install the white lower snap ring and inlet valve into the rotor’s body, first load the white lower snap ring and valve to the tool. to do so, hold the valve in the palm of the hand as shown (fig 117). In the other hand, take the white lower snap ring.
  • Page 43 check to make sure that the pointer arrow on the tool is directly above the communication port on the inlet valve and that the valve is securely hooked to the tool (fig 121). once the white lower snap ring and inlet valve have been properly secured to the tool, rotate the snap ring so that the snap ring’s open ends are 180 degrees away from the pointer arrow (to the opposite side of the tool).

  • Page 44: Solenoid, Pilot Valve & Regulator Servicing - All Electric Vih Models

    Whenever possible, keep head and body parts away from the top of the rotor. ToolS needed • Phillips Screwdriver • Flat Blade Screwdriver • Hunter Wrench – PN 471720 • T ubing Clamp, Locking Forceps or ¼” Tube Retainer (to close pilot valve’s inlet tubing) • Side Cutters (Dikes) or Blade Cutter (to cut tubing) ACCeSS To flAnge CoMPARTMenT CoMPonenTS Using a Phillips screwdriver, remove the two stainless steel screws that retain the flange compartment’s lid (fig 124). A slot is located adjacent to the on-off-auto selector at the edge of the flange lid. Use a bladed screwdriver to pry the flange lid up...
  • Page 45 With the flange compartment lid removed and prior to disassembly, take time to note the orientation of the various components within the flange compartment (fig 128). This will be valuable later for reference during final assembly. In particular notice: • How the solenoid wires fold over the top and to the flat side of the solenoid • How, in the Auto position, the flat on the side of the solenoid faces to the outside • How the pilot valve’s fittings and connected tubing point in a specific direction • How the pressure regulator is tucked into position within the compartment Selector cap Removal the selector cap turns the solenoid when the user changes the on-auto-oFF settings. under normal operating conditions, the selector cap should not need replacement. the selector cap can become damaged if the incorrect tool is used to make on-auto-oFF selection adjustments.

  • Page 46: Solenoid & Pilot Valve Assembly Removal

    Solenoid & PiloT VAlVe ASSeMbly ReMoVAl In order to work on the solenoid or the pilot Valve, it is first necessary to remove the connected solenoid and pilot Valve assembly from the flange compartment. Prior to removal, take note of the orientation of the fittings and tubing that are attached to the pilot Valve. this will help with final assembly later. To remove the Solenoid and Pilot Valve from the flange compartment, grab the Solenoid and wiggle it back and forth while lifting upwards (fig 130). Pull the Solenoid and Pilot Valve assembly up and on top of the rotor’s flange (fig 131).

  • Page 47: Solenoid & Servicing And Replacement

    Solenoid & SeRViCing And RePlACeMenT preventing Sprinkler Activation – see the warning above regarding rotor activation when solenoid is loosened or removed. there are three ways to prevent activation of the rotor when the solenoid is removed from the pilot Valve: • T he best and most effective way is to shut down the main line or the sub-main line that supplies water to the rotor that is being serviced.
  • Page 48 Solenoid Servicing – the plunger assembly and the rubberized seat-seal are serviceable on Hunter solenoids. to replace a worn or damaged rubberized seat-seal, simply pull the old one off and press the new one into position on the solenoid’s plunger.
  • Page 49 If not possible, feed replacement Solenoid’s wiring through hole at the bottom of the flange compartment. Splice controller wires with solenoid’s wires using appropriate grease-filled connectors. choose either of the Hunter dc solenoid’s lead wires when making each splice as there is no specific polarity required.

  • Page 50: Pilot Valve Replacement

    PiloT VAlVe RePlACeMenT See the warning above regarding rotor activation when Solenoid is loosened or Pilot Valve tubing is disconnected. there are no serviceable parts within the tts rotor’s pilot Valve assembly. If the filter inside the pilot Valve becomes obstructed, the water flow through the Pilot Valve can be reduced. A substantial reduction in water flow through the pilot Valve will prevent the rotor’s Inlet Valve from opening fully.

  • Page 51: Connecting Solenoid To The Pilot Valve

    ConneCTing Solenoid To THe PiloT VAlVe To ensure that the On-Off-Auto feature functions properly, follow the procedure outlined below. The TTS rotor’s Solenoid has double-lead threads. If this procedure is not followed, the Solenoid can be attached to the Pilot Valve 180 degrees out of position.

  • Page 52: Attaching The Assembled Solenoid And Pilot Valve To The Flange Compartment

    ATTACHing THe ASSeMbled Solenoid And PiloT VAlVe To THe flAnge CoMPARTMenT With the solenoid and pilot Valve correctly assembled as outlined above, look at the bottom of the pilot Valve. notice there are two opposing sections of plastic that protrude to the outside and away from the center (fig 139). these two “ears” must engage the Pilot Valve’s mounting base in the body flange compartment during installation (fig 140).

  • Page 53: Attaching Selector Cap To The Solenoid

    ATTACHing SeleCToR CAP To THe Solenoid the selector cap turns the solenoid when the user changes the on-auto-oFF settings. under normal operating conditions, the selector cap should not need replacement. the selector cap can become damaged if the incorrect tool is used to make on-auto-oFF selection adjustments. With the Solenoid and Pilot Valve assembly installed in the flange compartment and the Solenoid set to the Auto position (see instructions above), proceed as follows. The flat side of the Solenoid should be facing away from the rotor’s riser assembly pointing towards the outside of the flange compartment (fig 142).

  • Page 54: Pressure Regulator Purpose, Settings And Adjustment Procedures

    PReSSuRe RegulAToR PuRPoSe, SeTTingS And AdjuSTMenT PRoCeduReS regulation settings are preset at the factory. If the installed rotor has been preset to the specified regulation setting for your irrigation system, further pressure regulator adjustments are not normally necessary. If a replacement tts rotor is being installed, it may be necessary to adjust the regulation setting.

  • Page 55: Pressure Regulator Adjustment

    PReSSuRe RegulAToR AdjuSTMenT the variable setting pressure regulator has been calibrated from the factory and set to a specific regulation setting. this setting will not normally need to be changed. the variable pressure regulator has a pointer and a pressure indicating scale on the side of its body with a range of 60 psI to 120 psI.

  • Page 56: Pressure Regulator Replacement

    FIg 148 ATTACHing THe flAnge CoMPARTMenT lid Take a moment for a final check to make sure that all of the flange compartment components have been installed properly. Place the flange compartment lid into position and align the Selector Cap to its hole in the lid. Press the flange compartment lid into position and secure with the stainless steel retaining screws (fig 148). Finally, check selector cap for free movement of the on-off-auto Feature. If you have further questions after reviewing this manual, please contact Hunter’s technical services department at 800-733-2823 and select option #3.
  • Page 58 P.O. Box 211303 Amman 11121, Jordan Tel: (962) 6-515-2882 Fax: (962) 6-515-2992 china B1618, Huibin Office Bldg. No.8, Beichen Dong Street Beijing 100101, China Tel1/Fax: (86) 10-84975146 Tel2: (86) 13-901321516 © 2010 hunter industries incorporated. printed in usa gliT-071 9/10...

This manual is also suitable for:

G870G880G990G995

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