Spearhead QHD flail mower service schedule
Hedgecutters and flails · Handbook and parts book edition 13. Date: check your handbook
Covers the Spearhead QHD flail mower (Q2000HD, Q2500HD, Q2800HD).
Every maker's service job for the Spearhead QHD flail mower, counted in hours, with the oils, filters and parts each one needs. Add your implement to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.
Track your QHD flail mower for freeVersions: Q2000HD (2.0 m); Q2500HD (2.5 m); Q2800HD (2.8 m)
Service intervals
| Job | When |
|---|---|
| Daily grease: rotor, roller, PTO | every 8 hours |
| Flail check, replacement and bolt torque | every 8 hours |
| Drive belt tension and pulleys | every 8 hours |
| Gearbox oil check and change | every 50 hours or every year |
| Skid wear | every year |
| End-of-season storage | every year |
Service jobs and parts
Daily grease: rotor, roller, PTO
Lubrication · every 8 hours
Spearhead: grease all bearings daily, and the rotor bearing and rear roller at least every 8 hours and especially after washing. Clean and re-grease the PTO sliding surfaces and universal joints.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Grease | 1 | Check your handbook for the grade | check your handbook |
Step-by-step
- Grease the rotor, cross shaft and rear roller bearings.
- Grease the PTO universal joints and sliding profiles.
- Check for string, plastic or grass wrapped on the rotor shaft or rear roller bearing.
Tools: Grease gun
Flail check, replacement and bolt torque
Rotor · every 8 hours
Spearhead: check the condition of the flails and the retaining bolts daily; torque is 160 lb ft (200 N·m). Replace badly worn, damaged or cracked flails at once and never weld them. Replace nuts and bolts with new whenever flails are replaced. Never run with a flail missing: it causes vibration, bearing wear and cracks the hood. Do not change to a different type of flail, to protect rotor balance.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Flail | 1 | Check the drawing in Spearhead QHD parts book 8999020: its text reads out of order, giving either 1777312A or 05.968.06 for this part | check your handbook |
| Flail bush | 1 | Check the drawing in Spearhead QHD parts book 8999020: its text reads out of order, giving either 7770699 or 2770397 for this part | check your handbook |
| Flail bolt | 1 | Check the drawing in Spearhead QHD parts book 8999020: its text reads out of order, giving either 180489 or 2770467 for this part | check your handbook |
| Flail nut | 1 | Check the drawing in Spearhead QHD parts book 8999020: its text reads out of order, giving either 2770600 or 1772303A for this part | check your handbook |
Step-by-step
- Stop the engine and isolate the PTO.
- Check every flail for wear and cracks and every bolt for tightness.
- Replace damaged flails with the same type, new bush, bolt and nut, torqued to 200 N·m.
- Check no flails are missing before starting.
Tools: Torque wrench, Spanners, Goggles
Drive belt tension and pulleys
Drive · every 8 hours
Spearhead: check drive belts are aligned and properly tensioned every day to avoid belt wear. The pulleys have taper locks with 7 screws to tighten; check them often once bedded in (Loctite helps). Remove both guards to tension the belts.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Drive belt | 1 | Parts book lists a belt but the number could not be matched to the drawing: check your parts book | check your handbook |
Step-by-step
- Remove both guards.
- Check the belts for wear and tension, and that the pulleys are in line.
- Check the taper lock screws are tight, then refit the guards.
Tools: Spanners, Straight edge
Gearbox oil check and change
Gearbox · every 50 hours or every year
Spearhead: check the oil level before first use and every 8 hours. Drain and replace the gearbox oil after the first 50 hours, then every year, with EP90. Inspect the seals regularly and replace them at once if oil leaks. Check gearbox bolts are tight and locked with Loctite.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Gear oil | 1 | EP90. Quantity: check your handbook | check your handbook |
| Gearbox assembly (if needed) | 1 | Parts book ref 1 | 5770009 |
Step-by-step
- Park level, stop the engine and remove the PTO.
- Drain the oil, refit the plug and refill with EP90 to the level mark.
- Check the seals for weeping and the gearbox bolts for tightness.
Tools: Drain tray, Spanners, Funnel
Skid wear
Chassis · every year
Spearhead: on abrasive soils and stubbles, skids wear fast. Special hard-facing rods can be used to protect them. No interval is given.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Skid | 1 | Parts book lists a skid but the number could not be matched to the drawing: check your parts book | check your handbook |
Step-by-step
- Check the skids and replace them when worn through.
Tools: Spanners
End-of-season storage
Storage · every year
Spearhead: at the end of the season wash off all grass and dirt. Do not hold a pressure washer jet close to the paintwork. Grease all grease points until fresh grease shows. Store the PTO shaft and drive belts in a dry place.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Grease | 1 | Check your handbook for the grade | check your handbook |
Step-by-step
- Wash the machine thoroughly.
- Grease all points until fresh grease shows.
- Store the PTO shaft and belts indoors.
Tools: Pressure washer, Grease gun
Oils, fluids and capacities
| System | Oil or spec | Capacity |
|---|---|---|
| Gearbox | EP90 gear oil | Check your handbook |
| Bearings and PTO | Grease | Check your handbook |
Specifications
| Tractor | 50 to 90 hp, category-fitting linkage, minimum tractor weight with ballast 2,500 kg |
| Rotor speed | Optimum 2,200 rpm, PTO 540 or 1000 rpm as marked on the decal |
| Flail bolt torque | 160 lb ft to 200 N·m |
| Torque (recommended maximum) | M8 pulley clamps 45 N·m, M10 general 65 N·m, M12 general 114 N·m, M16 roller plate bolts 280 N·m |
| Nuts and bolts | Keep nuts and bolts tight; check every 8 hours |
Known problems
Bolts work loose when new
Spearhead says a new machine has a bedding-in period, so check gearbox and flail bolts often at first.
Never weld flails
Welding makes them brittle and dangerous.
Parts list with genuine part numbers
Spearhead QHD (Q2000HD, Q2500HD, Q2800HD) handbook and parts book, 13th edition, 8999020
Rotor and roller
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Flail | 7770699 | per flail position | Wear part |
| Flail bush | 180489 | per flail position | Wear part |
| Flail bolt | 2770600 | per flail position | Wear part |
| Flail nut | 05.968.06 | per flail position | Wear part |
| 3 mm spacer | 180470 | as required | |
| Roller bearing | 4770872 | 2 | Wear part |
| Roller bearing | 4770891 | 1 | Wear part |
| Rotor bearing | 4770892 | 1 | Wear part |
| Rotor seal | 4771122 | 1 | Wear part |
Main body
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Drive belt | 4770843 | per set | Wear part |
| Bearing, 35 mm | 4770860EC | 1 | Wear part |
| Bearing, 40 mm | 4770933EC | 1 | Wear part |
| Skid | 1772309 | 2 | Wear part |
| Rubber flap, 2 m | 8400201 | 1 | Wear part |
| Rubber flap, 2.5 m | 8400200 | 1 | Wear part |
| Rubber flap, 2.8 m | 8400199 | 1 | Wear part |
Gearbox
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Bearing | 5772341 | 1 | Wear part |
| Bearing | 4771606 | 1 | Wear part |
| Bearing | 5771435 | 1 | Wear part |
| Bearing | 5772340 | 1 | Wear part |
| Oil seal | 4771124 | 1 | Wear part |
| Oil seal | 5772343 | 2 | Wear part |
| Breather | 5771607 | 1 |
Hydraulic headstock
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Ram seal kit | 3570650T,W,HP | 1 | Wear part |
| Wear pad | 4600120 | as book | Wear part |
Wheel kit
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Wheel bearing | 4771600 | as book | Wear part |
PTO shaft
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Cross journal | 5771301 | 2 | Wear part |
| Overrun clutch | 5772321 | 1 | Wear part |
| Outer bearing | 4770815 | 1 | Wear part |
| Inner bearing | 4770814 | 1 | Wear part |
| Safety chain | 5771020 | 1 | Wear part |
Cross shaft
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Cross journal | 5770529.02 | 2 | Wear part |
Sources
More from Spearhead.