The Mountfield 1638H Twin ride on mower has an 98cm deck (38") and is powered by a Stiga Twin Cylinder SAT550 engine which provides a massive 10.04 kw of power to the hydrostatic transmission. Driving the hydrostatic model is simplicity itself, the further you press forward the drive pedal the faster the machine travels. This new model is quiet and powerful due to this twin cylinder engine.
Operating the 98cm cutting deck couldn't be easier; you just pull the control switch for “On” and push it in for “Off”. It has seven preset cutting heights ranging from 25mm to 80mm selected by using the lever at the side of the seat and the cutting height can also be adjusted on the move. Grass cuttings are blown from the twin bladed cutter deck into a large rear mounted collector. An alarm sounds to let the driver know when the collector is full.
Emptying the collector of the Mountfield 1638H TWIN lawn tractor is done from the driving seat; simply pull the tipping lever the collector opens and empties out the clippings, you don’t need to get off the tractor at all.
The 1638H Twin garden tractor is extremely versatile,it can collect the grass clippings or if required rear discharge them. When conditions allow, it can also multiclip and recycle your grass!!
Mulching grass is a great bonus as it saves so much time; it can be around 30% quicker as there is no stopping work to drive to the tip to empty clippings. Mulching the grass allows the clippings to be recycled into the lawn, conditioning the soil as they decompose forming a natural fertiliser high in potash and nitrogen. You will see a great improvement in your grass as this fertiliser takes effect over the course of the season. You might ask “Will I see the mulched grass?” and the answer is “No!” The clippings are blown down into the growing grass and are not noticeable provided the grass is cut regularly and not on the lowest setting. Some owners may prefer to collect grass cuttings on areas close to the house to be certain that children or pets don’t carry them inside, then use the mulching facility on all the other areas.Swapping from collection or mulch mode is extremely simple and takes less than a minute; simply remove the collector, insert the mulch plug into the discharge chute and replace the collector. To return to collection simply reverse the procedure.
FS 481 V-Twin
Net Power Output
9.0kW @ 2600rpm
Fuel Tank Capacity
Hydrostatic & Reverse
Front 15" Rear 18"
25-80mm (7 Positions)
Collector Full Buzzer
Up to 2 acres
Length 234cm Width 103cm
5 Years (Terms & Conditions Apply)
The engine of this machine requires SAE10w30 oil. The engine will be filled prior to delivery, but subsequent oil changes will require 1.5 litres of oil. We suggest that a first oil change is carried out at roughly 10 hours use, then on an annual basis.
We would also suggest that an annual service is carried out.
The engine is designed to run on standard unleaded fuel, but please be aware that this fuel will go stale very quickly so it is best to use fuel that is less than 60 days old or engine problems can occur.
We recommend the use of ASPEN 4 fuel as it will last indefinitely without going stale, so peak performance and starting is always guaranteed. ASPEN 4 is however more expensive than standard petrol and can be purchased in sealed 5 litre cans from ourselves at the Colaton Raleigh shop.