Humboldt H-1339B Marshall Compression Machine - Manual (Page 5)

Operation
Control Panel
The control panel is situated on the front left hand side of the machine base.
Preset Speed:
2.00 in/min. (50.80mm/min.)
Direction of Travel
It is necessary to ensure that the direction of the platen (up or down) has been
correctly selected. The platen travel direction switch has three positions: up,
off, down. Before changing travel direction, you must first switch to the “off”
position and pause for a second before changing travel direction.
Maximum Travel Limits
The maximum up travel limit occurs when the loading screw extends beyond the
reach of the drive gear and remains there – it is not indicated by a light. The
down travel limit is indicated on the control panel with a red indicating light.
The machine will stop operation in that direction when this light is illuminated.
The maximum travel of the platen is 3.50" (88mm).
Load Ring
When a load ring is used it can be attached directly to the cross-beam using the
3/4-16 x 3" long bolt.
Maximum Load
The Marshall Compression and Testing Machine is rated at 10,000lbf (or 50kN).
Flow Measurement
Requires a Marshall Test accessory, e.g., H-1344 Flow meter with dial gage, 1"
travel, 0.001" divisions, or H-1344M with 25 mm travel and .25 mm divisions.
You must use the
toggle switch to stop test.
The machine does not
stop automatically when
the stability load is reached.
IMPORTANT