Wessex CRX150 / CRX180 / CRX240 Multicut roller mower service schedule
Mowers and toppers · Manual L2051, November 2015. Older CRX and the larger CRX 410: check your handbook
Covers the Wessex CRX150 / CRX180 / CRX240 Multicut roller mower (topper).
Every maker's service job for the Wessex CRX150 / CRX180 / CRX240 Multicut roller 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 CRX150 / CRX180 / CRX240 Multicut roller mower for freeVersions: CRX150 (1.5 m cut); CRX180 (1.8 m cut); CRX240 (2.4 m cut)
Service intervals
| Job | When |
|---|---|
| Daily greasing and blade look-over | every 10 hours |
| Blades, blade bolts and balance | every 25 hours |
| Weekly greasing and gearbox level check | every 40 hours or every month |
| PTO shaft check | every 40 hours |
| Drive belts and belt covers | every 50 hours |
| Rollers and scraper wires | every 50 hours |
| Gearbox oil change | every year |
| Winter storage preparation | every year |
Service jobs and parts
Daily greasing and blade look-over
Chassis · every 10 hours
Wessex's lubrication schedule says grease the roller bearings every day and inspect the blades every day.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| General-purpose grease | 1 | Grade not given in the manual: check your handbook | check your handbook |
Step-by-step
- Stop the PTO and the engine, take the key out and wait for the blades to stop. Lift the topper on stands if you need to look underneath. Never work under an unsupported machine.
- Grease the front and rear roller bearings.
- Look at every blade for chips, cracks and bends and check none is missing.
Tools: Grease gun, Rag, Gloves
Blades, blade bolts and balance
Blades and skids · every 25 hours
Wessex: inspect the blades regularly and replace any that are worn, chipped or broken, because they put the rotors out of balance. Always replace the blades on both ends of a bar together, and fit new nylock nuts every time a blade tip is changed. Running with unbalanced rotors damages the machine and is not covered by warranty. The manual gives no bolt torque.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Blade tip | 2 | Per bar. Wessex genuine, all three models | WX-9070 |
| Blade bolt (with new nylock nut) | 2 | Per bar. Wessex genuine, all three models | WX-1739 |
| Blade bar | 1 | Per spindle. CRX150 / CRX180 / CRX240 | WX-11170 / WX-7270 / WX-9170 |
| Blade bar bolt | 1 | Per spindle. Wessex genuine | WX-2339 |
| Anti-scalp boss | 1 | Per spindle. CRX150 / CRX180 / CRX240 | WX-4370 / WX-7470 / WX-7470 |
| Disc spring | 1 | Per spindle. Wessex genuine | WX-3525 |
Step-by-step
- Raise the topper and support it on axle stands. Never get under it on a jack alone.
- Check each blade tip and bar for chips, cracks, bending and wear.
- Change both tips on a bar together so the rotor stays balanced. Fit new nylock nuts every time.
- Turn each rotor by hand to check it spins freely and nothing rubs.
- Lower the topper and, after the first few minutes of work, check for vibration.
Tools: Axle stands or blocks, Spanners, Torque wrench (the manual gives no figure: check your handbook), Gloves
Weekly greasing and gearbox level check
Chassis · every 40 hours or every month
Wessex lists these as weekly: grease the height adjustment points, the cutter spindle bearings, the PTO shaft bearings and the PTO tube slides, lubricate the adjusting threads and check the gearbox oil level. The manual gives no hour figure; this entry uses about 40 hours or a month.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| General-purpose grease | 1 | Grade not given in the manual: check your handbook | check your handbook |
| Spindle grease nipple (if damaged) | 1 | Wessex genuine, one per spindle | WX-0246 |
| EP90 gear oil | 1 | EP90. Top-up only | check your handbook |
Step-by-step
- Park on level ground, stop the engine, take the key out and wait for the blades to stop.
- Grease the height adjustment points, each of the three cutter spindle bearings, the PTO shaft bearings and the two sliding tubes of the PTO shaft.
- Put a few drops of oil on the adjusting threads.
- Check the gearbox oil level at its plug and top up with EP90 if it is low.
Tools: Grease gun, Oil can, Spanners, Rag
PTO shaft check
PTO shaft · every 40 hours
Wessex manual: grease the sliding profiles and the shaft bearings weekly, fit the safety chains so the shaft can bend freely without wrapping the guard, and use the support hook rather than hanging the shaft on its chains. This entry uses about 40 hours for the weekly interval.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| PTO shaft cross journal set | 2 | Wessex PTO shaft WX-2481 parts list | PTO-2.41 |
| PTO shaft safety chain | 2 | Wessex PTO shaft WX-2481 parts list | PTO-1.76.01 |
Step-by-step
- Pull the two halves apart and grease the sliding profiles.
- Grease the universal joints and guard bearings.
- Check the guard is whole and turns freely, and the safety chains are fitted and not wound round the guard.
- When fitting to a new tractor, hold the half-shafts side by side at their shortest working length and shorten the guard tubes and the sliding profiles by the same amount, then deburr the cut ends.
Tools: Grease gun, Spanners, Hacksaw (only if you shorten the shaft)
Drive belts and belt covers
Drive · every 50 hours
Wessex: check all drive belts for tension and replace any that are cut, frayed or worn, and keep debris cleaned out from under the belt covers. The belts are tensioned by moving the gearbox with its adjuster nut and checked by belt deflection. The manual gives no deflection figure, so this entry uses 50 hours and tells you to check your handbook for the deflection.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Drive belt | 2 | CRX150 / CRX180 / CRX240. Wessex genuine, sold as a pair | WX-2434 / WX-1034 / WX-4034 |
Step-by-step
- Stop the engine, take the key out and wait for everything to stop.
- Take off the belt covers and clear grass and dirt from under them.
- Look at both belts for cuts, fraying and glazing. Replace them as a pair.
- Check the tension by pressing on the belt. To adjust, move the gearbox with the adjuster nut, then tighten the gearbox fixings.
- Refit the covers.
Tools: Spanners, Straight edge, Rag
Rollers and scraper wires
Chassis · every 50 hours
Wessex lists the front and rear rollers and the scraper wires as a regular inspection item. It gives no hour figure; this entry uses 50 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Roller bearing grease | 1 | Grade not given in the manual: check your handbook | check your handbook |
Step-by-step
- Stop the engine and make the machine safe.
- Check the roller tubes for dents and the scraper wires for wear and breaks.
- Spin each roller by hand and feel for roughness or play in the bearings.
- Replace any worn scraper wire or bearing.
Tools: Spanners, Grease gun, Gloves
Gearbox oil change
Gearbox · every year
Wessex says to top up or change the gearbox oil with EP90 before winter storage, depending on the hours worked. It gives no hour interval and no quantity, so this entry uses once a year. There is no oil filter.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| EP90 gear oil | 1 | EP90. Quantity not given in the manual: check your handbook | check your handbook |
| Gearbox oil seal (if leaking) | 1 | Wessex parts list for gearbox WX-5257 | GXS-8.7.3.01259 |
Step-by-step
- Run the topper a minute to warm the oil, then stop, take the key out and wait for everything to stop.
- Put the tray under the gearbox, take out the oil plug and the cap on top and let it drain.
- Refit the plug and fill with EP90 until it reaches the level plug. If you cannot find the quantity, fill slowly and check the level.
- Refit the cap and look for leaks at the seals.
Tools: Drain tray (3 L), Spanners, Funnel, Rag
Winter storage preparation
Storage · every year
Wessex lists these steps before storing the CRX for winter. Do them at the end of the cutting season.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| EP90 gear oil | 1 | EP90, to top up or change the gearbox | check your handbook |
| Light oil | 1 | For the underside of the deck | check your handbook |
Step-by-step
- Repair or replace any worn or broken parts, with particular attention to the blades, rotors and bearings.
- Check the gearbox oil and top it up or change it with EP90.
- Take the belts off and check the rotors spin freely. Check the belts are in good condition before refitting.
- Wash the machine well to remove oil, grease, crop and mud.
- Grease every grease point to keep corrosion out.
- After pressure washing, run the mower for a short time to throw water out of the bearings.
- Wipe a light oil over the underside of the deck.
Tools: Pressure washer, Grease gun, Spanners, Oil sprayer
Oils, fluids and capacities
| System | Oil or spec | Capacity |
|---|---|---|
| Gearbox | EP90 gear oil (Wessex specification) | Check your handbook (quantity not given in the manual) |
| Grease points | Grease (grade not given in the manual: use a general-purpose lithium grease, check your handbook) |
Specifications
| Cutting width | CRX150 1.5 m; CRX180 1.8 m; CRX240 2.4 m |
| Weight | CRX150 266 kg; CRX180 295 kg; CRX240 365 kg |
| Cutting height (rollers) | 10–110 mm |
| Cutting height (wheels) | 10–150 mm |
| Cutting spindles | 3, each with a 2-tip blade bar (6 blades) |
| Gearbox oil | EP90 |
Known problems
Unbalanced rotor
A missing or chipped blade shakes the machine and can wreck the spindle bearings. Wessex says this damage is not covered by warranty, so stop and check as soon as you feel vibration.
Gearbox oil quantity
The manual only says EP90 and gives no fill quantity or change interval. Check the level plug every week and keep records of your own oil changes.
Repair guides
- Vibration or a missing blade: blades, bars and balance (Wessex CRX / RMX-500) (Moderate, 1 hour): Vibration, a chipped or missing blade, poor cut, or a nylock nut that has been used already.
- Slipping drive belts and worn PTO shaft (Wessex CRX / RMX-500) (Moderate, 1–2 hours): Belts slipping and a poor cut, burning smell, belts frayed, PTO shaft rattling or the guard not turning.
- Gearbox oil leaks and EP90 oil (Wessex CRX / RMX-500) (Moderate, 1–2 hours): Oil weeping at the gearbox seals, low oil, gearbox noise or heat.
The full step-by-step guides are in Farmyard Workshop once you add your implement.
Parts list with genuine part numbers
Wessex CRX150 / CRX180 / CRX240 Multicut mowers operation manual and parts book: parts lists for the spindle and blade assembly, gearbox WX-5257, PTO shaft WX-2481 and drive items 1 to 6. No quantities on the spindle page (page text did not line up).; plus Wessex CRX150/180/240 Multicut operation manual and parts book L2051, November 2015 (via ManualsLib). Columns shown as 150 / 180 / 240
CRX spindle and blade assembly
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Grease nipple | WX-0246 | ||
| Pulley fastening set | WX-5303 | ||
| Pulley spacer | WX-18166 | ||
| Circlip | WX-1722 | ||
| Bearing | WX-0838 | ||
| Spindle bearing housing | WX-5966 | ||
| Bearing (lower) | WX-0938 | ||
| Cutter spindle | WX-6066 | ||
| Spindle assembly (items 4 to 8) | WX-5966B | ||
| Housing fastening set | WX-3503 | ||
| Key | WX-0147 | ||
| Fibre washer | WX-0220 | ||
| Blade bar | WX-9170 | Wear part. CRX150: WX-11170; CRX180: WX-7270; CRX240: WX-9170 | |
| Blade tip | WX-9070 | Wear part. | |
| Blade bolt | WX-1739 | ||
| Anti-scalp boss | WX-7470 | Wear part. CRX150: WX-4370; CRX180: WX-7470; CRX240: WX-7470 | |
| Disc spring | WX-3525 | ||
| Blade bar bolt | WX-2339 |
CRX gearbox (assembly WX-5257)
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Input shaft | GXS-0.141.2100.00 | 1 | |
| Oil cap | GXS-8.7.0.00744 | 1 | |
| Bearing | GXS-8.0.1.00870 | 3 | |
| Shim kit | GXS-0.259.7500.00 | 1 | |
| Key | GXS-8.4.1.00993 | 1 | |
| Crown gear Z34 | GXS-0.133.5000.00 | 1 | |
| Plug | GXS-8.6.5.00006 | 2 | |
| Snap ring | GXS-8.5.2.00648 | 1 | |
| Shim kit | GXS-0.113.7500.00 | 1 | |
| Bolt | GXS-8.1.1.00054 | 4 | |
| Cover | GXS-0.205.1300.00 | 1 | |
| Ball bearing | GXS-8.0.1.00000 | 1 | |
| Output shaft | GXS-0.141.6002.00 | 1 | |
| Spacer | GXS-0.141.7100.00 | 1 | |
| Double lip seal | GXS-8.7.1.00152 | 1 | Wear part |
| Snap ring | GXS-8.5.3.00915 | 1 | |
| Castle nut | GXS-8.2.2.01144 | 1 | |
| Flat washer | GXS-8.3.2.00409 | 1 | |
| Snap ring (for shaft) | GXS-8.5.1.00005 | 1 | |
| Snap ring (for holes) | GXS-8.5.2.00131 | 2 | |
| Casing | GXS-0.211.0300.00 | 1 | |
| Plate | GXS-0.124.7135.00 | 1 | |
| Shim kit | GXS-0.248.7500.00 | 1 | |
| Oil seal | GXS-8.7.3.01259 | 1 | Wear part |
| Shim kit | GXS-0.259.7500.00 | 1 | |
| Spacer | GXS-0.211.7100.00 | 1 |
PTO shaft (assembly WX-2481)
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Push pin set | PTO-1.08.25 | 2 | |
| Push pin yoke | PTO-2.05.07 | 2 | |
| Cross journal set | PTO-2.41 | 2 | |
| Outer yoke | PTO-2.06 | 1 | |
| Pin, outer tube | PTO-1.12 | 1 | |
| Outer tube | PTO-2.03.10 | 1 | |
| Inner tube | PTO-2.04.10 | 1 | |
| Pin, inner tube | PTO-4.13 | 1 | |
| Inner yoke | PTO-2.07 | 1 | |
| U-joint, outer | PTO-2.01 | 1 | |
| U-joint, inner | PTO-2.02 | 1 | |
| Half female shaft | PTO-022.501 | 1 | |
| Half male shaft | PTO-022.500 | 1 | |
| Collar (female shield) | PTO-012.007 | 1 | |
| Cone (female shield) | PTO-012.013 | 1 | |
| Outer shield | PTO-121.108 | 1 | |
| Inner shield | PTO-121.208 | 1 | |
| Bolt | PTO-000.019 | 6 | |
| Cone (male shield) | PTO-016.025 | 1 | |
| Collar (male shield) | PTO-012.006 | 1 | |
| Half female shield | PTO-2.08.1F | 1 | |
| Half male shield | PTO-2.08.1M | 1 | |
| Safety chain | PTO-1.76.01 | 2 | |
| Complete shield | PTO-2.08.F | 1 |
CRX drive and baffles
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Gearbox (CR/CRX) | WX-5257 | Gearbox parts: see CRX gearbox group | |
| Key | WX-0547 | ||
| Fastening set | WX-5103 | ||
| Bucket guard | WX-5177 | ||
| Gearbox adjuster plate | WX-27976 | ||
| Belt guard, left hand | WX-18977 | CRX150: WX-18777; CRX180: WX-18477; CRX240: WX-18977 |
Spindle and blade
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Blade bar, CRX150 | WX-11170 | 1 per spindle | Wear part |
| Blade bar, CRX180 | WX-7270 | 1 per spindle | Wear part |
| Anti-scalp boss, CRX150 | WX-4370 | 1 per spindle | Wear part |
Drive
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Drive belt, CRX150 | WX-2434 | 2 | Wear part |
| Drive belt, CRX180 | WX-1034 | 2 | Wear part |
| Drive belt, CRX240 | WX-4034 | 2 | Wear part |
Rollers
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Roller bearing unit | WX-0541 | 4 | Wear part |
| Front roller bush | WX-10028 | 4 | Wear part |
Sources
- Wessex CRX150/180/240 Multicut Mowers Operation Manual and Parts Book L2051 (Nov 2015): table of contents, lubrication schedule, blades, EP90, winter storage, specifications
- Lubrication and weekly checks page
- Cutting blades, blade nuts and specifications page
- Spindle and blade assembly parts list (WX part numbers)
- Drive belts and pulleys parts list
- Gearbox parts list (GXS numbers, assembly WX-5257)
- PTO shaft parts list WX-2481
- Wessex CRX180 manual, parts lists p.17, 19, 23, 25 (ManualsLib)
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