Pisten Bully 400 service and operations

  
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ArlyA

ArlyA

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Mar 18, 2016
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Houghton MI (the Lake Superior snow belt) USA
Tractor
Polaris Boss 6x6 with pods (tracks) Center actuating lawn mower by Husky
When you have some very large tracks and you need to roll them through snow, plus tow some implement. This adds more and more to the power required to move along. These machines max at +- 10 mph. Over the years snow machines like these have been built, you'll see larger and larger HP engines have been utilized, while there top speed has not been increased.

370 hp seems like a lot for grooming trails, compared to what some semis have. Jon
 

bridge4

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Western,MA
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Mahindra 2638. Scag 61 V-ride.
How big are the modern engines? How often do you need to pull everything apart for service? Once a year? Or is it more based on time and conditions!
 
  
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ArlyA

ArlyA

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Mar 18, 2016
Messages
4,159
Location
Houghton MI (the Lake Superior snow belt) USA
Tractor
Polaris Boss 6x6 with pods (tracks) Center actuating lawn mower by Husky
The tracks and suspension seems to need the most servicing. I'll post photos of that tonight.

Technical Data
-------------------------------------------------------
Type Cummins QSL 9
Cylinders 6
Displacement 8.9 l / 8,900 cc
Power output (ECE) 280 kW / 381 PS / 375 hp
max. torque 1,519 Nm at 1,500 rpm
Fuel tank capacity 260 l (69 gal)
Fuel consumption from 19.0 l/h (5.02 gal/h)
Exhaust emission standard EUROMOT III A / TIER 3

More specs can be found at

PistenBully 4

How big are the modern engines? How often do you need to pull everything apart for service? Once a year? Or is it more based on time and conditions!
 
Last edited:

Amvcane

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2012 Kioti CK35hst tlb; 1990 JD 322; 1987 JD 332; 1985 JD 318; 2010 JD ProGator 2030A; 1982 Porsche 911sc
ArlyA, what type of material are the motor drive cogs made of?
 

bridge4

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Jul 17, 2019
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Western,MA
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Mahindra 2638. Scag 61 V-ride.
I did not realize how big these machines are. Thought they were a little bigger than a snowmobile.

I think there are some smaller ones, but some of them get real big.
 

bridge4

Gold Member
Joined
Jul 17, 2019
Messages
446
Location
Western,MA
Tractor
Mahindra 2638. Scag 61 V-ride.
I did not realize how big these machines are. Thought they were a little bigger than a snowmobile.

I think there are some smaller ones, but some of them get real big.
 
  
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#18  
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ArlyA

ArlyA

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Joined
Mar 18, 2016
Messages
4,159
Location
Houghton MI (the Lake Superior snow belt) USA
Tractor
Polaris Boss 6x6 with pods (tracks) Center actuating lawn mower by Husky
They are steel, encased in HDPE or maybe some UHMW-PE polymer. Or some plastic similar to that. Sorry that I didn't have a camera with me today. :confused:

ArlyA, what type of material are the motor drive cogs made of?
 
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