Universal Calibrating Machine
(UCM) Manual
(PM-5201)
Morehouse Instrument Company, Inc.
1742 Sixth Ave., York, PA 17403-2675 USA
Phone: (717) 843-0081
www.mhforce.com
Page 10
Rev. 11/2021
Figure 5: Hydraulic Hand Pump Assembly Connected to Jack Assembly
Ram
Vernier Piston
High/Low Selector
Drip Pan
Relief Valve
Quick-Disconnect Coupling
High-Pressure Hose
Air Bleed Plug
Hydraulic Hand Pump
The basic and low-cost system to provide hydraulic pressure for a UCM is a Morehouse hand pump (Figure 5).
When this system is purchased with a UCM, the hydraulic jack is activated by a hand pump assembly that ad
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vances the ram quickly, then more slowly until the desired load is achieved. The high/low operation is switched
manually, and can be switched at any desired load. The pump is connected to the hydraulic jack by means of a
hydraulic hose assembly with a quick-disconnect coupling.
Caution: Before use, check the hose and fittings for any potential leaks.