Table of Contents
Advertisement
3. Nothing happens when press is operated.
a. If motor does not run, the electrical circuit should be investigated.
b. Release valve is open. Be sure to have release valve firmly closed when using
press.
c. If the ram will come down only a fraction of its rated stroke, check the oil level in
the reservoir with the ram at the top of its stroke.
d. Eductor nozzle is plugged. If motor labors and ram does not move when pump
control knob is turned, the orifice in the eductor nozzle (item 73) may be plugged.
Drain reservoir, remove tube assembly (Item 123), eductor bushing (item 70),
eductor body (item 72), and eductor nozzle (Item 73). Clean out orifice with a 1/32"
drill. Replace parts being sure not to install item 72 backwards. See parts drawing.
Check O-ring and back-up washer (items 71A &71B) to be sure it has not been
damaged.
4. Press is operating slow.
a. Improper oil. It is essential that the recommended oil (Mobil DTE 24 or equivalent)
be used. Heavier oils cause a marked reduction in the ram speed.
Note: DO NOT USE HYDRAULIC JACK OIL.
b. Release valve not closed properly. Release valve must be firmly closed when
using the press.
c. The seal on the piston rod for the 50-101 pump is worn. A worn seal will pull air
into the pump causing the pump to slowly lose its prime. To test, place grease
around the control rod where it goes in and out of the seal (Item 129). Then
replace seal part number 26573.
d. The piston rod for the 50-101 pump is bent or rusted. Contact Dake for rebuilding
the pump. Note: Adjustments to the pump are not necessary and the pump
should not be tampered with because expensive damage could occur.
905050
13
Dake Corporation
724 Robbins Road
Grand Haven, MI 49417
www.dakecorp.com
REV112019
Advertisement
Table of Contents
