Toro 855S User manual

Toro 855S User manual
835S and 855S Series Rotary Sprinklers
Installation & Service Instructions
Installation Procedure ____________________________________________________________
To assure maximum performance from your 800S series sprinklers, read these instructions
completely prior to installation or service.
OFF
AU
TO
Figure 1
ON
Constructing Swing Joints
1. Construct or provide triple swing joints for each sprinkler as shown in Figure 1. Use PVC or
ABS pipe nipple for the sprinkler connection.
Note: On sites where the possibility of heavy equipment rolling over a sprinkler exists, the
swing joint will flex preventing damage to the lateral or main lines. On a new installation in raw
ground where the sprinklers are to be initially installed above the finished grade and lowered
when new turf is established, the swing joint allows sprinkler repositioning without changing
risers.
2. Flush lines thoroughly prior to installing sprinkler.
3. Apply Teflon™ tape on riser threads (not required on ACME threads). Install sprinkler to the
riser and tighten.
CAUTION: Use only Teflon tape on riser threads. Use of pipe dope or other types of sealing compounds can cause
deterioration of sprinkler body threads.
Connecting Control Wires (Electric Models Only)
1. Route control wires to sprinklers. Provide extra wire at sprinkler to allow for height adjustment. One common wire and station wire
is required for each sprinkler. See Wire Sizing Chart, Table 1 for proper application.
Table 1: Wire Sizing Chart
Voltage
23
23
23
23
23
23
23
24
24
24
24
24
24
24
AWG
14/14
14/12
14/10
12/12
12/10
12/8
10/10
14/14
14/12
14/10
12/12
12/10
12/8
10/10
2
mm
2.5/2.5
2.5/4.0
2.5/5.5
4.0/4.0
4.0/5.5
4.0/7.0
5.5/5.5
2.5/2.5
2.5/4.0
2.5/5.5
4.0/4.0
4.0/5.5
4.0/5.5
5.5/5.5
Voltage Drop
4
4
4
4
4
4
4
5
5
5
5
5
5
5
Total Wire Length Between Controller and Sprinkler
Circular Mils
4100
5315
7250
6530
8465
11515
10400
4100
5315
7250
6530
8465
11515
10400
Note: Wire length data provided in Table 1 is the sum
of the station and common wire legs. See example in
Figure 2.
2. Attach control wires to solenoid leads using an
approved waterproof splicing method.
CAUTION: All wire splices and field connections
must be waterproofed to prevent short circuit to
ground and subsequent controller damage.
1 Sprinkler
6571'
2003 m
8518'
2596 m
11619' 3541 m
10465' 3190 m
13566' 4135 m
18454' 5625 m
16667' 5080 m
2503 m
8213'
10647' 3245 m
14523' 4427 m
13081' 3987 m
16957' 5168 m
23067' 7031 m
20833' 6350 m
2 Sprinklers
3285' 1001 m
4259' 1298 m
5809' 1771 m
5232' 1595 m
6783' 2067 m
9227' 2812 m
8333' 2540 m
4107' 1252 m
5324' 1623 m
7262' 2213 m
6540' 1993 m
8479' 2584 m
11533' 3515 m
10417' 3175 m
3 Sprinklers
2190' 668 m
2839' 865 m
3873' 1180 m
3488' 1063 m
4522' 1378 m
6151' 1875 m
5556' 1693 m
2738' 835 m
3549' 1082 m
4841' 1476 m
4360' 1329 m
5652' 1723 m
7689' 2344 m
6944' 2117 m
4 Sprinklers
1643'
501 m
649 m
2129'
886 m
2905'
798 m
2616'
3391'
1034 m
1406 m
4613'
1270 m
4167'
626 m
2053'
812 m
2662'
1107 m
3631'
3270'
997 m
4239'
1292 m
5767'
1758 m
5208'
1581 m
Figure 2
Station Wire = 1095' (334m)
Common Wire = 1095' (334m)
Total Wire Length = 2190' (668m)
Connecting Hydraulic Control Tubing (Hydraulic Models Only)
1. Route control tubing from the controller
to the sprinkler location(s).
Table 2: Hydraulic Control Systems
Note: Leave an 18" (45.7 cm) service
loop of tubing at each sprinkler to
facilitate movement of sprinkler and
service operations. Refer to Table 2
for tubing run length and sprinkler
elevation information.
Type of System*
Normally Open (01)
with 3/16" Control Tubing
Normally Open (01)
with 1/4" Control Tubing
2. Flush tubing thoroughly to remove all
air and debris.
Maximum Distance
From Controller
500'
1000'
Elevation Restrictions
Valve elevation should not exceed
25' ABOVE controller elevation or
70' BELOW controller elevation.
Valve elevation should not exceed
25' ABOVE controller elevation or
70' BELOW controller elevation
*• All hydraulic connections on Toro valves are 1⁄4" insert type.
• Control line pressure must be equal to or greater than mainline pressure.
• Control line pressure range is 40 to 150 PSI.
3. Remove the tube retainer and poly cap
from the tubing adapter at the base of
the sprinkler.
4. Slide the tube retainer over the end of the control tubing and attach tubing to adapter.
5. Slide tube retainer over the adapter area to secure tubing.
System Start Up _________________________________________________________________
WARNING
NEVER STAND OR LEAN OVER THE SPRINKLER WHILE THE IRRIGATION SYSTEM IS BEING FILLED, DURING
MANUAL OR AUTOMATIC OPERATION OR WHEN PERFORMING SPRINKLER SERVICE PROCEDURES. DIRECT
CONTACT WITH IRRIGATION SPRAY, A FAILED OR IMPROPERLY INSTALLED SPRINKLER CONNECTION OR
SPRINKLER COMPONENTS FORCIBLY EJECTED UPWARD UNDER PRESSURE CAN CAUSE SERIUS INJURY.
The following is a recommended procedure that will protect system components during system start-up. The procedure is based on a
velocity fill rate of less than 2' (0.61 m) per second. See Table 3 below.
1. Use jockey pump only to fill the system at a velocity fill rate of less than 2' (0.61 m) per second.
CAUTION: Failure to comply with recommended fill rate will increase line pressure resulting in a water hammer effect
that could damage sprinklers and piping components.
2. Use quick coupler keys at all tees and greens with quick coupler valves to bleed air from the system lines during the filling
process. For best results, do not compress air and then relieve it – bleed the air continuously while filling the system.
3. After water has filled all lines and all air is removed, remove the quick coupler keys.
Table 3: Recommended System Fill Rate
Pipe Size
in.
1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
2
cm
1.3
1.9
2.5
3.1
3.8
5.0
6.4
Flow
GPM
2
3
5
10
10
20
30
LPM
7.6
11.4
18.9
37.9
37.9
75.7
113.6
Velocity
ft/sec
1.60
1.92
1.50
1.86
1.41
1.80
1.84
m/sec
0.49
0.59
0.46
0.57
0.43
0.55
0.56
Pipe Size
in.
3
4
6
8
10
12
cm
7.6
10.1
15.2
20.2
25.4
30.5
Flow
GPM
45
75
150
250
450
500
LPM
170.3
283.9
567.8
946.3
1703.0
1893.0
Velocity
ft/sec
1.86
1.87
1.73
1.70
1.97
1.55
m/sec
0.57
0.57
0.53
0.52
0.60
0.47
Arc Adjustment Procedure ________________________________________________________
WARNING
DUE TO THE HIGH OPERATING PRESSURE, NEVER STAND OR LEAN DIRECTLY OVER THE TOP OF THE
SPRINKLER OR COME IN CONTACT WITH THE SPRAY. FAILURE TO COMPLY MAY RESULT IN SERIOUS INJURY.
The 835S and 855S sprinkler models can be operated in full-circle or part circle operation. In part-circle operation, the sprinkler arc
can be adjusted from 40°– 330°. When full-circle (360°) operation is selected, the sprinkler will rotate in a clockwise direction only. The
arc is factory preset at 180°. The left side of the arc, located at the end of the counterclockwise rotation, is non-adjustable (fixed).
Therefore, all arc adjustments, whether increasing or decreasing, will change the right side of the arc, located at the end of the
clockwise rotation.
Figure 3
1. Using the sprinkler Multi-Purpose Tool (P/N 995-83), pull the sprinkler riser up from the
body. See Figure 3.
2. Find the sprinkler left stop by rotating the turret counter clockwise until it stops. The left
stop indicates the fixed stop of the arc. See Figure 4.
3. Check the left stop alignment with the left most area being irrigated. Adjust by ratcheting
the riser clockwise or counterclockwise until the sprinkler left stop points to the correct
area. See Figure 5.
CAUTION: The riser can only ratchet when the sprinkler is not operating.
Attempting to ratchet the riser during operation may damage the sprinkler.
The turret can also be used to adjust the left stop. If the left stop falls short of the desired
border, rotate the turret counterclockwise until it is aligned with the left watering border.
See Figure 4.
If the left stop exceeds the border, rotate the turret clockwise until the right stop. Continue
to advance the turret the same distance that the left stop exceeded the border.
See Figure 6.
4. Find the sprinkler right stop by rotating the turret clockwise until it stops. See Figure 6.
Note: If the sprinkler is set at 360° (full-circle), it will rotate clockwise only.
5. Adjust the arc while the turret is pointing at the right stop. Hold the sprinkler riser firmly while pressing the release on the
adjustment band. Rotate the turret counterclockwise or clockwise to the desired right stop. See Figure 7.
6. Activate the sprinkler to check proper arc setting and adjust as necessary.
Figure 4
Figure 5
Figure 6
Figure 7
3
Adjustment Band Angle Indicators
Figure 8
90°
180°
270°
360°
The adjustment band of the 835S and 855S have markers at predetermined arcs. By aligning the adjustment band indicators to the
turret arrow, you can set the sprinkler arc to 90°, 180°, 270° or 360°.
Trajectory Adjustment Procedure ___________________________________________________
TM
The 835S and 855S sprinkler models are equipped with the Trujectory nozzle spray angle adjustment feature. The trajectory adjusts
from the top of the sprinkler enabling fine-tuning from 7˚–30˚ to compensate for windy conditions, spraying under low-hanging
obstructions, up bunker faces and along natural habitats.
To adjust the nozzle spray trajectory angle, use a 5/16" socket (Figure 9). Turn the trajectory adjustment clockwise to
decrease (Figure 10) or counter-clockwise to increase (Figure 11).
Figure 9
Decrease
Trajection
Figure 10
Increase
Trajection
Figure 11
4
Pilot Valve Operation (Electric Models Only) __________________________________________
Another important function of the pilot valve is to regulate the water
pressure to the sprinkler nozzle. Pressure regulation compensates for large
variations within the system and maintains a constant pressure for optimum
sprinkler operation. The pilot valve is factory set to regulate one of four
pressure levels 50 psi (3.4 bar), 65 psi (4.5 bar), 80 psi (5.5 bar) or 100
PSI (6.9 bar).
Change the pilot valve operating pressure by loosening the thumb screw
that secures the selector lever. Position the selector lever to the desired
operating pressure and hand-tighten the nut. See Figure 12.
TO
Figure 12
AU
The main function of the pilot valve is to control the operation of the main
valve located in the base of the sprinkler body. The main valve is operated
by the release of water metered through the pilot valve when it is activated
either manually at the sprinkler or by the irrigation system controller.
ON
100 PSI
(7.0 kg/cm2)
80 PSI
(5.6 kg/cm2)
65 PSI
(4.6 kg/cm2)
50 PSI (3.5 kg/cm2)
Troubleshooting __________________________________________________________________
Pilot Valve
PROBLEM
Sprinkler will
not turn on
POSSIBLE CAUSE – CORRECTIVE ACTION
(a) No 24 VAC to solenoid assembly. (Electric Models)
– Measure voltage with a Digital Volt Meter (DVM). Check wiring and controller program.
– Refer to Controller Operating Instructions.
(b) Selector cam in "OFF" position.
– Set to "AUTO" position.
(c) Debris in pilot valve assembly.
– Disassemble and remove all debris. (See Servicing Pilot Valve page 12.)
(d) Insufficient pressure in controller supply line and/or sprinkler control tube. (N.C. Models)
– Check pressure.
Sprinkler will
not shut off
(a) Constant 24 VAC from controller. (Electric Models)
– Check for voltage using a DVM. If voltage is present, disconnect wire.
If sprinkler closes, service controller. Refer to Controller Service Manual.
(b) Selector cam in manual "ON" position.
– Set to "AUTO" or "OFF" position.
(c) Debris in pilot valve assembly.
– Disassemble and remove all debris. (See Servicing Pilot Valve page 12.)
(d) Constant pressure from controller. (N.C. Models)
– Check pilot valve at controller for constant flow.
– Check elevation differential. Valve elevation should not exceed 0' above
controller elevation or 70' (21.3 m) below controller elevation.
Sprinkler Mechanism
PROBLEM
Sprinkler won't rotate
Head sticks up
Poor distribution pattern
POSSIBLE CAUSE – CORRECTIVE ACTION
(a) Debris wedged between stator and turbine.
– Remove obstruction.
(b) Drive assembly defective.
– Replace drive assembly.
(c) Nozzle base assembly defective.
– Replace nozzle base assembly.
(a) Dirt in riser assembly.
– Flush out. (See Flushing Procedure on page 12.)
(b) Damaged or missing return spring.
– Replace.
(c) Damaged riser.
– Replace.
(a) Nozzle plugged with debris.
– Clean or replace nozzle.
(b) Nozzle orifice damaged.
– Replace nozzle.
(c) Low operating pressure.
– Determine why system overloaded and correct.
5
Main Valve
PROBLEM
Valve won't close
(Electric )
Valve won't close
(Hydraulic)
Valve won't open
(Electric)
Valve won't open
(Hydraulic)
Sprinkler Weeping
(Slow leak in valve)
Several valves on different
stations fail to close
(Hydraulic)
6
POSSIBLE CAUSE – CORRECTIVE ACTION
(a) Continuous 24 VAC to sprinkler.
– Check controller for voltage source.
(b) Leak in pilot valve assembly.
– Replace pilot valve assembly.
(c) Plugged supply screen on piston.
– Clean or replace screen.
(d) Manual control selector on pilot valve assembly turned to "ON" position.
– Turn to "AUTO" position.
(e) Plunger movement restricted.
– Inspect and clean or replace.
(f) Valve cylinder misaligned with sprinkler body communication tube.
– Remove valve assembly and install correctly.
(g) Foreign object keeping valve from seating.
– Remove, clean and check valve for damage. Replace if necessary.
(h) Damaged piston seal or piston assembly.
– Replace valve assembly.
(a) Leak in control tubing.
– Isolate and repair.
(b) Pilot valve leak in controller.
– Confirm by observing constant dripping from discharge line of controller.
Refer to Controller Service Manual.
(c) Valve cylinder misaligned with sprinkler body communication tube.
– Remove valve assembly and install correctly.
(d) Foreign object keeping valve from seating.
– Remove, clean and check valve for damage. Replace if necessary.
(e) Damaged piston seal or piston assembly.
– Replace valve assembly.
(a) Control (field) wires severed.
– Isolate and repair.
(b) No power to controller.
– Establish controller power.
(c) No power from controller to solenoid.
– Check for blown fuse and replace.
(d) Manual control selector on pilot valve assembly turned to "OFF" position.
– Turn to "AUTO" position.
(e) Pilot valve solenoid inoperative.
– Remove and replace.
(f) Pilot valve plunger movement restricted.
– Inspect, clean and/or replace.
(g) No supply from main valve.
– Debris in control tube, main valve assembly and/or communication
passages in body. Flush thoroughly.
(a) Plugged controller discharge line or discharge port in pilot valve.
– Verify by checking for discharge at discharge line when station is
activated. If no discharge, refer to Controller Service Manual.
(a) Damaged or blocked valve seat.
– Remove blockage and, if necessary, replace valve assembly.
(b) Damaged piston seal or piston assembly.
– Replace valve assembly.
(c) Low pressure on supply line .
– Check for low pressure reason and correct.
(d) Elevation of normally closed sprinkler exceeds 75' (22.9 m) differential.
(a) Control tubing leak which lowers supply pressure to other stations.
– Turn controller from station to station until a station is reached where
only valves on that station stay open. The leak would be in the tubing
on that station. Isolate and repair.
(b) Leak in supply line to controller.
– Verify by checking pressure in all control lines.
(c) Leak in controller pilot valve.
– Verify by constant discharge from controller.
(d) Plugged supply line filter.
– Replace filter if more than 3 psi (0.21 bar) differential exists.
Service Procedures ______________________________________________________________
WARNING
NEVER STAND OR LEAN OVER THE SPRINKLER WHILE THE IRRIGATION SYSTEM IS BEING FILLED, DURING
MANUAL OR AUTOMATIC OPERATION OR WHEN PERFORMING SPRINKLER SERVICE PROCEDURES. DIRECT
CONTACT WITH IRRIGATION SPRAY, A FAILED OR IMPROPERLY INSTALLED SPRINKLER CONNECTION OR
SPRINKLER COMPONENTS FORCIBLY EJECTED UPWARD UNDER PRESSURE CAN CAUSE SERIOUS INJURY.
Servicing Sprinkler Mechanism
Note: Refer to Figure 13 for the following procedure.
1. Remove the cap screw (1) and cap (2).
Note: During reassembly, ensure the cap is correctly installed with the Toro Logo positioned over the main nozzle (10).
2. Insert the hooked end of the multi-purpose tool (P/N 995-83) into the snap ring slot (3). Pull the snap ring inward towards the
sprinkler assembly, then upward to remove from the groove in body.
Note: During reassembly, ensure the snap ring is correctly installed and fully seated in the sprinkler body.
3. Insert the hooked end of the tool into the slot provided in the nozzle base above the right intermediate nozzle (9). Pull the riser
assembly until enough clearance to handle. Hold onto the riser body (13) and carefully extract it from the sprinkler body.
CAUTION: The seal/retainer (4) will eject (caused by the decompressing spring [5]) as it clears the sprinkler body.
4. Three small tabs are provided on the edge of the multi-purpose tool. Insert tabs into the debris filter screen (17). Holding the
plastic base of riser assembly, turn the screen counterclockwise to remove.
5. Remove the variable stator (16) from riser assembly.
6. Loosen the drive assembly retaining screw (14) 6–7 turns and pull the drive assembly (15) using a pair of pliers. See Figure 14.
Note: Do not remove the retaining screw completely as it is easily misplaced.
CAUTION: When removing or installing the drive assembly, do not use the turbine to pull the drive assembly. Use the
drive assembly body to extract it out. Failure to comply may cause separation of the drive assembly components.
Note: During reassembly, ensure drive assembly is properly aligned with the retaining screw.
7. Using a 5/8" nut driver (P/N 995-99), unscrew main nozzle (10) from nozzle base assembly.
8. Using a 5/16" nut driver (P/N 995-105), unscrew the inner (8) and intermediate (9) nozzles.
9. Thoroughly clean and inspect all parts and replace as necessary. Reassemble in reverse order.
10. When installing the riser assembly to the sprinkler body, align the ratchet ring with the inside body rib. Use the indicator on top of
the sprinkler body to center the ratchet ring. See Figure 15.
Figure 13
Figure 14
1
2
8
10
7
12
3
11
9
13
4
15
14
5
Figure 15
16
17
6
7
Servicing Main Valve
WARNING
IF THE VALVE SNAP RING IS DIFFICULT TO REMOVE, RESIDUAL WATER PRESSURE MAY BE REMAINING IN
THE SYSTEM. TO PREVENT POSSIBLE SERIOUS INJURY DUE TO VALVE BEING EJECTED UPWARD UNDER
PRESSURE, CONFIRM THE FOLLOWING CONDITIONS EXIST PRIOR TO REMOVING THE SNAP RING AND
VALVE.
A. WATER SUPPLY TO SPRINKLER IS SHUT OFF AT SOURCE.
B. ALL PRESSURE IS BLED FROM SYSTEM, INCLUDING CONTROL TUBES.
C. AC POWER IS DISCONNECTED AT SOURCE.
1. See Warning above. To remove valve assembly, squeeze
snap ring ears together with snap ring pliers (P/N 995-100)
and remove snap ring from sprinkler body. See Figure 16.
Figure 16
Figure 17
2. Use valve removal tool P/N 995-08 for 835S or 995-09 for
855S to remove valve assembly from base of sprinkler body.
Valve removal tool is inserted into sprinkler body and pushed
through valve ribs. A slight twist will catch tool under ribs
enabling valve removal by pulling straight up and out. See
Figure 17.
Note: If valve removal tool is not available, use snap ring
pliers to grasp rib of valve cylinder assembly and pull up and
out of sprinkler body.
3. Reinstall valve assembly using valve insertion tool P/N 995-76
for 835S or 995-101 for 855S as follows:
• Load snap ring onto insertion tool carrier with stepped side
against carrier as shown in Figure 18. While holding snap
ring in compressed position, slide retainer clip in to hold snap
ring ears
• Load valve assembly on carrier as shown.
• Locate position of communication tube in bottom of sprinkler body and orient insertion tool accordingly.
• Insert tool straight down into sprinkler body aligning bosses on t-handle with holes on sprinkler body flange. When valve
assembly clears vertical side wall ribs inside body, pull up on snap ring release mechanism (855 models only) and press valve
assembly into position. Snap ring will lock into groove when properly installed. Remove insertion tool and check snap ring to
confirm that it is fully seated in groove
Figure 18
Snap Ring In
Retainer Clip
Snap Ring Release
Mechanism
Stepped Side
of Snap Ring
Valve Assembly
Orientation In Carrier
Snap Ring
Released
Press Valve Assembly
Into Position
Servicing Pilot Valve
WARNING
NEVER STAND OR LEAN OVER THE SPRINKLER WHILE THE IRRIGATION SYSTEM IS BEING FILLED, DURING
MANUAL OR AUTOMATIC OPERATION OR WHEN PERFORMING SPRINKLER SERVICE PROCEDURES. DIRECT
CONTACT WITH IRRIGATION SPRAY, A FAILED OR IMPROPERLY INSTALLED SPRINKLER CONNECTION OR
SPRINKLER COMPONENTS FORCIBLY EJECTED UPWARD UNDER PRESSURE CAN CAUSE SERIOUS INJURY.
Note: Refer to Figure 19 for the following procedure.
Figure 19
1. Make sure that the water supply to sprinkler is positively
shut off and any residual pressure has been bled off. If the
sprinkler is pressurized, main valve will open when the pilot
valve is disconnected from control tube.
14
8
9
2. Carefully remove turf and soil from the side of the sprinkler
to expose pilot valve and control tubing.
3. Remove the two retaining screws from the pilot valve
housing.
4. Pull the pilot valve assembly away from the sprinkler body
and cut the control tubing just below tube retainer. Unless
pilot valve has been previously removed, control tubing
length will be sufficient for re-connection.
5. Remove tube retainer and remaining piece of control tubing
from valve body fitting.
13
12
7
10
11
15
1
6
4
2
5
16
17
3
6. Remove the solenoid (1 or 2) by turning it counterclockwise.
7. Remove the retaining nut (17) and washer (18) from the
pressure adjuster (10) and pull the pilot valve body
assembly out of housing (14).
8. Remove diaphragm assembly (14), piston (13), spring (12), traveling adjuster (11), pressure adjuster (10) and o-ring (6).
9. Remove selector shaft assembly (8) and plunger assembly (4).
Note: The selector shaft retains the plunger in the valve body.
10. Thoroughly clean and inspect all parts. Replace damaged parts as necessary and reassemble in reverse order.
Note: Refer to Illustrated Parts Breakout Book, form number 490-3043 for service part numbers.
Flushing Sprinkler ________________________________________________________________
WARNING
NEVER STAND OR LEAN OVER THE SPRINKLER WHILE THE IRRIGATION SYSTEM IS BEING FILLED, DURING
MANUAL OR AUTOMATIC OPERATION OR WHEN PERFORMING SPRINKLER SERVICE PROCEDURES. DIRECT
CONTACT WITH IRRIGATION SPRAY, A FAILED OR IMPROPERLY INSTALLED SPRINKLER CONNECTION OR
SPRINKLER COMPONENTS FORCIBLY EJECTED UPWARD UNDER PRESSURE CAN CAUSE SERIOUS INJURY.
1. With sprinkler operating, carefully step down on center of cap several times. Water will flow around riser and flush out debris.
2. Cycle sprinkler on and off several times to check for proper retraction. Cap should be even with top of body flange when fully
retracted. If riser sticks in up position, check for debris lodged between riser and body. Flush out all debris. Remove sprinkler
mechanism if necessary.
© 2005 The Toro Company, Irrigation Division
Form Number 373-0380 Rev. A
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