63
TRAK Machine Tools
Southwestern Industries, Inc.
TRAK 3ntr 3D Printers
–
Maintenance & Troubleshooting Manual
8)
Mount pump.
Don’t
tighten screws
9)
Turn o
n machine (DON’T r
efill circuit yet)
10)
Tighten (gently) the pump screws until are tightened or pump stops running. In any case, never
overtighten.
Figure 6.9.8 Refilling Reservoir
11)
If pump is running, refill circuit and look for leaks. If pump is not running, check connection.
Replace if connection is ok.
6.10
Pulleys
It may happen that pulleys are getting loose or moving along the bearings, getting to touch supporting
metal sheet. To check that pulleys are running OK:
1)
Turn OFF machine, remove USB cable.
2)
Grab extruder hold assembly and move it left/tight and back/forth. You must feel continuous friction,
without any discontinuity.
3)
Turn ON machine (to get LED lighting) and check pulleys clearance
–
you must be able to take a
thin paper fragment between pulley and the supporting metal.
NOTE
- XY motors are strong enough to cope with some pulley friction.
