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Massey Harris & Massey Ferguson Tractors Discussion Forum

135 lift capacity

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MF Poor

09-23-2006 09:30:55

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Looking for specs on 1966 Massey 135 (U.S. built/U.S. market) 3-point hitch rating. (in lbs) I"m finding numbers all across the board, none of which seem very accurate. Any links to GOOD info appreciated.

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DavidP, South Wales

09-23-2006 09:41:42

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Re: 135 lift capacity in reply to MF Poor, 09-23-2006 09:30:55

Hi, in the 1960's UK MF 135 Operator's Manual, the figure for maximum lift is given as 2850lbs (1293Kg). Should be the same for all tractors.
DavidP

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MF Poor

09-23-2006 13:25:11

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Re: 135 lift capacity in reply to DavidP, South Wales, 09-23-2006 09:41:42

That's sounds about right, but..... .....?

I'm hearing from a few others that the relief valve is pre-set to vent at 2250. I know for a fact that my 150 will lift over 3000 lbs. Not sure if the 135 and 150 share same lift rating even though they share many of the same hydraulic/lift parts. My question is about a 135. (belongs to a friend) Just using the 150 for comparison.

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DavidP, South Wales

09-24-2006 05:39:08

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Re: 135 lift capacity in reply to MF Poor, 09-23-2006 13:25:11

Hi again,
Yes the early 135's were set to blow at 2250-2300psi. Later ones in the UK had the pressure in the Pressure Control system set to blow at 3000psi. These are roughly 1971 onwards. Longer lift arms are fitted to later models which would change the lift spec.
DavidP

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MF Poor

09-24-2006 06:36:51

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Re: 135 lift capacity in reply to DavidP, South Wales, 09-24-2006 05:39:08

Now things start getting MORE confusing. I've got a 1971 150. From the day it was new, it would lift in excess of 3000. It DOES NOT have pressure control. The relief starts rattling long before it reaches a 3000 lb load, but I've raise 3200lbs on the end of a 3-point boom pole once with no signs of trouble. It was enough to raise the front wheels off the ground. I'm reasonably sure the 150 (U.S. marketed) lift system is essentially the same as a 135. My point? If the relief is set to "blow" at 2250, wouldn't that become the limit of the lifts capacity? Why would the lift cap. be 2850 rated when the relief lets go at 2250?

I'm trying to answer a friends question on his 135 but I'm starting to have questions of my own now.

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Joe Ferguson

09-24-2006 09:00:50

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Re: 135 lift capacity in reply to MF Poor, 09-24-2006 06:36:51

"Why would the lift cap. be 2850 rated when the relief lets go at 2250?"

Releif valve is settled to 2250 PSI which is the
pressure from the pump it opens to avoid damage to
components due to eccessive pressure. The pressure must be controlled because the maximum pressure limit will be the weakest component to fail.

2850 lbs is the maximum weight that it can lift.

2250 PSI and 2850 lbs are totally different references.

HTH

Joe Ferguson

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