The Flexi-coil 68 service manual PDF takes your 68 or 68XL field sprayer apart system by system across 440 pages. It is filed under OEM number 87655441 and runs from rear axle and frame folding through to the spraying pump. Electrical schematics trace the switch box, ISOBUS ECU, boom valves, relays and lighting harness, while hydraulic schematics map the circuits behind boom tilt, unfold and levelling. Spraying plumbing and the pressure system fill well over a third of the book, with calibration, application rate, nozzle maintenance, tank cleaning and troubleshooting charts for the pump. Fit a 1 1/2 in (3.8 cm) NPT quarter-turn ball valve on the induction tank suction, and bring the hitch mounting bolts to 407 Nm (300 lb ft). Every day the boom sits folded is a spray window gone. The PDF is bookmarked and searchable, and it rides in the tractor cab or on the shop laptop, so you can do the fix at the field edge instead of at the dealer's counter.
What's Inside This Flexi-coil 68, 68XL Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 5-54 | Safety Rules, Decals Suspended Boom, Basic Instructions |
| Distribution Systems | 55-72 | Lighting System |
| Travelling | 73-92 | Rear Axle, Wheels and Tracks |
| Body and Structure | 93-128 | Frame Secondary Frame |
| Frame Positioning | 129-140 | Travelling Folding |
| Working Arm | 141-214 | Hitch Front Hitch, Boom Tilt, Boom Unfold, Boom Levelling |
| Spraying - Calibration and Dynamic Description | 215-225 | Calibration, Application Rate, Solution Density, Special Application Situations |
| Command Switch Box and Electronic Control | 226-246 | Switch Box, Controller Plumbing, Electrical Schematics, Wiring Harness, Relay |
| Sprayer ISOBUS and Boom Valves | 247-261 | Isobus, Boom Valves, ECU, Sensors, Agitation Shut Off |
| Foam Marker and End Nozzle | 262-271 | Foam Marker Switches, End Nozzle, Windscreen Assembly, Spring Assist |
| Spraying Plumbing System | 272-364 | Windscreen Panel, Tank Cleaning, Drain Fluid, Control Valve, Nozzle Maintenance |
| Spraying Pressure System | 365-440 | Pump Load Characteristics, Hydraulic Pump, Pressure Setting, Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Hitch mounting bolts torque | 407 Nm (300 lb ft) | p. 145 |
| Agitation Valve Size and Type | 2.5 cm (1 in) NPT quarter turn ball valve | p. 38 |
| Induction Tank Supply Valve Size and Type | 2.5 cm (1 in) NPT quarter turn ball valve | p. 38 |
| Induction Tank Suction Valve Size and Type | 3.8 cm (1 1/2 in) NPT quarter turn ball valve | p. 38 |
| Control valve bolt torque | 1.2 Nm (12 lb in) | p. 307 |
| Flow calibration adjustment | increase or decrease by 5 % | p. 280 |
| Recommended strip length for crimping | 4 +/- 0.5 mm (0.175 +/- in) | p. 281 |
| Chemical Induction Tank Capacity | 45 L | p. 39 |
| Fresh Water Tank Capacity | 455 L | p. 39 |
| 68 | ||
| Agitator orifice size | 4.76 mm (3/16 in) | p. 332 |
| Main Tank Capacity (Model 68) | 3900 L | p. 39 |
| 68XL | ||
| Main Tank Capacity (Model 68XL) | 6160 L | p. 39 |
Flexi-coil 68, 68XL Common Problems This Manual Covers
Flexi-coil 68 sprayer hydraulic cylinders out of phase with wing boom bouncing and spray boom height off
Check hydraulic cylinder phasing first, working through the frame troubleshooting steps on page 121 before you touch any hose. Correct the phasing per that procedure, then recheck spray boom height and watch for wing boom bounce on a test pass. If foldout is also acting up, finish the checks on page 122 before heading back to the field.
Manual Section: Frame Secondary Frame Troubleshooting p. 121Boom unfold hydraulics or electrical circuit fault with wings creeping out of position
Check the electrical side separately from the hydraulic side before you replace anything. Work through the boom unfold troubleshooting, testing the electrical circuit first and then the boom hydraulics. Follow the wing creep steps in that same chart, fix what it points to, and cycle the boom several times before you head back out to spray.
Manual Section: Boom Unfold TroubleshootingSpraying plumbing system losing pressure, running pressure too high or too low, or uneven pressure
Check the spraying plumbing system troubleshooting chart for loss of pressure, pressure too high or low, and uneven pressure before you adjust anything. Verify your working pressure sits inside the range for the tips on the boom: XR and ER series tips run 100 to 400 kPa (15 to 60 psi) per page 324.
Manual Section: Spraying Plumbing System TroubleshootingNozzle strainers plugging with distorted spray patterns, nozzle drip, or no flow at some tips
Clean the nozzle strainers and inspect each tip before blaming the pump, working through the nozzle troubleshooting chart for no flow, distorted patterns, and drip. Verify boom pressure suits the tip: standard tips need at least 200 kPa (30 psi) per page 324. Check the spray drift steps in that same chart before your next pass.
Manual Section: Nozzle TroubleshootingHydraulic pump losing pressure with hydraulic oil heat buildup and erratic motor operation
Verify pump speed first: the hydraulic pump maximum operating speed is 6000 RPM per page 385, so confirm the pump is not running above that speed before you chase parts. Then work through the hydraulic pump troubleshooting for loss of pressure, pressure too high or low, oil heat buildup, and erratic motor operation, fixing the first fault it turns up.
Manual Section: Hydraulic Pump TroubleshootingFoam marker producing no foam, not enough foam, surging foam, or wet foam
Clean the foam marker compressor intake filter, which the manual calls for every 40 operating hours on page 430. Check the air pressure relief valve setting against 103 kPa on that same page. Then run through the foam marker troubleshooting for no foam, surging, or wet foam so the passes stay marked for the rest of the season.
Manual Section: Foam Marker TroubleshootingFrequently Asked Questions
How do I calibrate the flow rate on a Flexi-Coil 68XL sprayer?
To calibrate the flow rate, you must determine the actual tractor ground speed by timing a 30.5 m (100 ft) run, then measure the volume sprayed over a known distance. Divide the total volume sprayed by the area covered to calculate the actual application rate. If the rate does not match the desired rate, adjust the sprayer pressure or tractor speed accordingly. p. 322
What is the torque specification for the hitch mounting bolts on the Flexi-Coil 68/68XL?
The mounting bolts for the hitch on the Flexi-Coil 68/68XL should be torqued to 407 Nm (300 lb ft). p. 145
How often should I grease the secondary boom pivot wing joints on a Flexi-coil 68, 68XL field sprayer?
The secondary boom pivot wing joints should be greased after every 50 hours of operation. p. 100
What is the correct air pressure for the caster tires on the secondary boom of a Flexi-coil 68, 68XL sprayer?
The air pressure for the caster tires on the secondary boom should be maintained at 138 kPa (20 psi). p. 98
How do I adjust the break-away trip pin on the secondary boom?
Adjust the break-away trip pin by turning the 3/8 in nut so the trip pin protrudes 3 mm (1/8 in) through the pivot arm pin plate. Ensure the 3/16 in trip cable is tight after the adjustment is made. p. 116
What format is this Flexi-coil 68 manual in?
Immediate download of the complete 440-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Is this Flexi-coil 68 manual print-friendly?
Yes. No DRM, nothing blocks printing, so run off the pages you need on whatever printer you have.
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