®
Instruction Sheet
012-13141B
For Use with TD-8577
Glass Tubes, Replacement
TD-8498A
*012-13141*
Spare parts for this product may be available. Please contact PASCO Teacher Support for availability and pricing.
Introduction
The TD-8498A Glass Tubes, Replacement are for use with the TD-8577 PASCO Compression Igniter.
The Replacement Glass Tubes kit includes two packets of silicone compound lubricant, two glass tubes, and
twelve O-rings: two large, two medium, and eight small. The large O-rings are replacements for the ring at the
top of the inner glass tube. The medium O-rings are replacements for the ring at the top of the piston rod where it
joins the handle. The small O-rings are replacements for the rings on the end of the Compression Igniter piston
rod and for the rings on the post that is part of the removable base. The lubricant is for the small O-rings on the
piston rod. (NOTE: The packets of silicone lubricant may be different than the examples shown.)
Caution
The inner cylinder in the Compression Igniter is thick-wall glass, but it can break if the Compression Igniter is
dropped, especially if the piston is inside the glass tube. Be careful when handling the Compression Igniter, and
always store the igniter with the piston removed from the glass tube.
Included Items
Qty
Inner Glass Tube
2
Small O-ring, 3/16” ID
8
Medium O-ring, 1/4” ID
2
Large O-ring, 7/16” ID
2
Lubricant, silicone compound, packet
2
Large O-ring (2)
Small O-ring (8)
Inner Glass Tube
Lubricant (typical)
Medium O-ring (2)
