PDA

View Full Version : RH stander engine question


BLS33
04-06-2011, 10:35 AM
I've got a 2008 Wright Stander RH, 52", 19 HP kawa engine...When I turn the blades on at full throttle, it really bogs down the engine, to almost shut off. What would be the reason for this? Or what will fix this issue?

WrightCommercial
04-06-2011, 11:47 AM
BLS33,

Either the engine governor is not responding to the increased load and not increasing the RPM,s or there is a bind condition in the spindles or clutch. Behind the throttle plate on the engine you should see the governor moving when the blades are engaged if not it will have to be repaired. For the spindles you can remove the belts and check the spindles for play or roughness when they spin. For the clutch engage it when the deck belts are off, if it bogs then the clutch is binding (if the governor works).

Best Regards
Wright Mfg.

BLS33
04-06-2011, 09:16 PM
I should have said it bogs down for a little bit then fires up to normal speed. Does that change the diagnosis?
Posted via Mobile Device

WrightCommercial
04-07-2011, 09:26 AM
BLS33,

So it sounds like the governor is working, but something could be still be causing drag on the system. Still a good idea to check the spindles, does the deck sound like it is making more noise than usual? Also how many hours are on the unit? Does it seem like the engine runs normal when not under load?

Best Regards
Wright Mfg.

BLS33
04-07-2011, 01:14 PM
I don't notice any unusual noises. About 750 hours on the machine. Seems to run just fine with the blades off.

BLS33
04-07-2011, 07:34 PM
When the belt is off, there is a little side to side play in the clutch. I'm assuming there shouldnt be any? Can it run like this for a while or can that cause more damage? Whats the cost on a replacement? And how difficult is it to replace?
Posted via Mobile Device

WrightCommercial
04-13-2011, 10:14 AM
BLS33,

If you mean the clutch will move side to side on the clutch stop that is normal the clutch has to have that movement. Check to make sure all the electrical connections related to the clutch, operator pressence switch, relay, and time delay(rectangular plug in on harness) are clean and secure.

Best Regards
Wright Mfg.

BLS33
04-13-2011, 10:46 AM
Thanks for the advice. I will continue to look things over and let you know what else i find.

BLS33
04-14-2011, 10:28 PM
Turns out is was a dirty/loose connection. Thanks for the help, mower runs perfect now. Just a couple general questions, do you know the rough weight and fuel mileage (hrs per gallon)?
Posted via Mobile Device

BLS33
04-14-2011, 10:53 PM
Or anything on acres mowed per hour? More curiousity on these questions than amything.
Posted via Mobile Device

BLS33
05-16-2011, 12:58 PM
Still looking for rough weight of rh and a idea on fuel mileage and acres mowed per hour
Posted via Mobile Device

WrightCommercial
05-16-2011, 04:55 PM
BLS33,

The rough weight of your RH is around 790 lbs, fuel milage is a figure that Kawasaki won't even provide as too many factors come in to play, state of engine tune, severity of turf conditions being cut, slopes, and obstacles all increase fuel consumption. As far as acres per hour, at 85% effeciency which accounts for slowing down for obstacles and turns- 7.5mph=3.35 ac/hr, 7.0 mph=3.13 ac/hr, 6.5 mph=2.90 ac/hr, 6.0 mph=2.68 ac/hr.

Best Regards
Wright Mfg.

olde_blue
05-21-2011, 10:24 AM
My fuel economy numbers:

17 hp Kaw KIA on 36" Stander: about 0.75 gph
17 hp Kaw KIA on 52" Stander: about 0.85 gph
25 hp Kohler on 52" Stander: a bit over 1 gph
25 hp Kaw on 61" Stander: a bit over 1 gph
13 hp Honda GX390 on 36" belt drive: about 0.5 gph
22 hp Koher on 48" Lazer Z hp: a little under 1 gph

The 13 hp Honda actually used the most fuel to cut the same amount of grass; because it was so slow. The 17 hp 36" Stander, which uses 50% more fuel per hour, is about 60-70% faster cutting. The 61" Stander uses the least amount of gas to cut a given area.

WJC
05-21-2011, 12:31 PM
My fuel economy numbers:

17 hp Kaw KIA on 36" Stander: about 0.75 gph
17 hp Kaw KIA on 52" Stander: about 0.85 gph
25 hp Kohler on 52" Stander: a bit over 1 gph
25 hp Kaw on 61" Stander: a bit over 1 gph
13 hp Honda GX390 on 36" belt drive: about 0.5 gph
22 hp Koher on 48" Lazer Z hp: a little under 1 gph

The 13 hp Honda actually used the most fuel to cut the same amount of grass; because it was so slow. The 17 hp 36" Stander, which uses 50% more fuel per hour, is about 60-70% faster cutting. The 61" Stander uses the least amount of gas to cut a given area.

I like the way you broke all that down, thats very useful info.