Dake Model 75H - 907003 - Manual

70H & 75H Press 8/02 1
INSTRUCTIONS AND PARTS
LIST FOR MODEL 70H & 75H
HAND-OPERATED HYDRAULIC
PRESS
SETTING UP THE PRESS FOR OPERATION
For shipping convenience, the gauge, pump handle, hoist crank, screw nose and base angles
were removed from the press. Assemble these parts to the press in the following order:
1. Bolt the base angles to the uprights using the four bolts and nuts furnished. Shoulder the
base angles against the stops on the uprights.
2. Install the pressure gauge using a hydraulic sealant to ensure a sealed fit.
3. Insert pump handle into handle socket and fasten in place by means of the setscrew on
top of the handle socket.
4. CAUTION! Place the hoist crank on the lift drum shaft. The table is raised to the
desired height by turning the crank after removing the table pins. Check to make
sure the hoist cable is tracking correctly. Run the table channels from top to
bottom. The cable should be on each of the two upper pulleys and should track
back and forth on the cable drum. Always place table pins under the table
channels before releasing the hoist crank when positioning the table channels for
cable tracking, servicing, or set-up for desired work opening. If a tracking problem
exists, contact the Dake factory for instructions. Be sure all table pins are fully
inserted in place before applying pressure. Always remove or release pressure on
the cable before pressure is applied.
5. Fasten nosepiece to the end of the screw using the thumbscrew included.
OPERATIONS AND CONTROLS
The operator should acquaint himself with the use of the following controls:
1. The pump handle is the pressure supply source and is manually operated with an up and
down motion.
2. Item number 45 (Part no. 10631) is the release valve handwheel. Always keep it firmly
closed when operating the press and it should only be opened when releasing the
pressure to allow the ram to return.
3. By turning Item 25 (Part No. 716520), the ram screw can be adjusted into or out of the
piston assembly. Always keep the portion of the screw extending out of the piston as
short as possible. It is advisable to raise the table one or two sets of holes rather than
running the screw out to its limit of travel.
NEVER EXCEED THE RECOMMENDED
STROKE OF 4 1/2 INCHES FOR THIS PRESS. EXCEEDING THE STROKE WILL
CAUSE DAMAGE TO THE INNER PACKINGS.
4. The two combination table plates-v blocks provided are used for supporting the work
while it is being straightened.
FILLING THE PRESS WITH OIL
It is extremely important that new, clean, light hydraulic oil be used in this press, Mobil DTE 24
or an equivalent. It is strongly recommended that the oil be filtered to remove any possible
dirt. The piston should be in its maximum upper position when filling the reservoir. Fill the
reservoir with 4 quarts of oil. UNDER NO CIRCUMSTANCES USE OLD DIRTY OIL. Next
remove the screw plug from the stand pipe on top of the workhead, close the release valve
handwheel and pump oil into the workhead until oil is visible in the stand pipe. This will
remove all air from the chamber above the piston. If oil leaks by the piston, the reservoir
should be drained and refilled (4 quarts of oil) with the piston in the top position.