Tiger Products Co., Ltd JD 72-7520 manual Assembly Lift Control Feedlines, Deck / Motor Feedline

ASSEMBLY

LIFT CONTROL FEEDLINES

Hose lengths will vary between tractor applications such as cab and non-cab units. See the parts section that pertains to your tractor for hose applications.

Install a hose from the bottom or inner valve port (in fender well for cab units, on stand for non-cab units) to the restrictor on the inboard cylinder gland.

Install a hose form the upper or outer valve port to the restrictor on the outboard cylinder butt. Use teflon tape on all fitting and hose connections.

DECK / MOTOR FEEDLINE

Install the hose with the 90 degree #20 flange on one end between the front side of the motor to the bottom of the solenoid valve. Secure to motor with #20 flange kit.

Install the #20 flange adapter block to the back side of the motor and install

swivel fittings. Install the hose from the fittings on the back of the motor to the top of the solenoid valve. Install split hoses around hydraulic hoses where they contact the edge of the head, or any other edges that may rub hoses.

Be sure that all grease zerks are installed in the draft beam pin bosses. Grease all areas of the draft beam according to the instructions in the maintenance section.

Re-check all fittings for tightness and be sure teflon tape has been used at all connections.

Fill hydraulic tank with fluid as recommended in the maintenance section. BE SURE TO OPEN THE BALL VALVES. Start the tractor and operate the inboard cylinder through the entire stroke and the outboard cylinder through the bottom ¾ stroke repeatedly to clear the lines of air. DO NOT run outboard cylinder out to full stroke until turnbuckle has been adjusted!

Check for oil leaks at all fittings and connections using a piece of paper or cardboard. DO NOT USE HANDS TO CHECK FOR FLUID LEAKS!

Raise the tree point hitch and check the tractor internal hydraulics, fill to proper level if needed.

TURNBUCKLE ADJUSTMENT

Extend the outboard cylinder until the deck touches the stop on the draft beam. Hold the deck in this position to adjust the lift cable tension. Adjust turn buckle until cable is tight.

Lower and raise the deck to check adjustment. The mower deck should reach it’s stop on the draft beam at the same time the outboard cylinder reaches it’s extreme extended position.

Finally tighten the turn buckle lock nuts securely. It will be necessary to readjust the turn buckle after the cable has stretched from use.

Assembly Section 2-18