Hi
The overload clutch is in the pto, its under the red plastic cover, its a simple spring loaded dog type ratchet, witch you preload by putting a torque wrench on the output shaft of the PTO ware the prop would go on, and adjusting the faceless nut with a grub screw in it (under the red cover), until the ratchet unlocks at Xlbft load on the torque wrench.
For the FW 525 witch used the same pto drive, most left SW/FW set at 45lbft, the maximum is 85lbft, but the 525 has a 48:1 gear ratio, but I don’t know what the gear ratio or drum radius is of the H14 is, to tell you the correct value!!!!!!!!
Use:
Place transfer box in neutral.
Forward gears in the main gearbox pull in winch rope.
Reverse gear pays out winch rope.
Maximum pull is in 1st gear at engine tick over RPM, if you have a hand throttle get the engine tick over as low as possible (you are after very low HP & your full ##lbft allotment of torque to avoid tripping the overload ratchet, witch adding HP i.e. RPM dose, HP = load vs. speed)
Just be very careful with PTO winches, they are more dangerous than electric or hydraulic when being operated by 1 person, if you get caught up in one it will keep pulling until the ratchet goes, and there is no way to reverse the winch unless you can get back into the cab, there is no button or dead man device to let go of like the other systems if you are out of the cab!!!!
Don’t clime underneath the land rover with the pto running to look at the pretty prop shafts spinning & start touching them or lie near them with lose clothing or long hair, if it grabs you it will happily rip what ever bit it was off

Were possible, always use 2 people to operate a pto winch, if you have to operate it by your self stay in the cab, mount a mirror at an angle on the front of the bonnet so you can see from the cab that the cable is spooling on correctly to save getting in and out etc, and for an extra margin of safety as there is no means of a dead mans device, get an emergency stop button and mount it near the winch in a prominent easily assessable place and have it so when winching it is spliced into the stop cellunoid on the injector pump effectively stopping the engine without the need to get back to the cab, but have it so when using on the road it is disconnected to avoid kids from pressing it for a laugh

b101uk