Section 9 - Maintenance
Table 9-1 Preventive Maintenance Schedule
Preventive Maintenance
Frequency
Verify injection pressure oil circuit
Check preload pressure on controller at start of
every shift. Preload pressure is shown in the top
right hand corner of the screen when the machine is
in manual or when waiting for a start trigger in auto.
Clean unit, remove spilled plastic pellets and
any accumulated drool from nozzle
Start of every shift
Check for condensation on external surfaces Start and end of every shift
Controller fan filters
Check monthly, replace if necessary
Oil bath level
Check every 3 months, add oil if necessary
Lubricate linear guides
Check every 3 months, add grease if necessary
Lubricate ball screws
Check every 3 months, add grease if necessary
Lubricate ball screw nut
(E-Multi Radial Option only)
Check every 3 months, add grease if necessary
Belt Tension
Check every 6 - 12 months, adjust if necessary
9.1 Preventive Maintenance Schedule
9.2
Screw Torque Specifications
WARNING
All screws must conform to DIN 912 (socket head cap screws) and ISO
12.9 (grade 12.9) unless noted otherwise. Using low quality screws can
result in screw failure and potentially serious injury.
Table 9-2
Screw Torque Specifications
Nominal Thread Size
Nm
ft-lbs (in-lbs)
M4
4.6
3.4 (40.8)
M5
9.5
7 (84)
M6
16
11.5 (138)
M8
39
29 (348)
M10
58
42.5 (510)
M12
101
75 (900)
M14
161
119 (1428)
M16
248
182 (2184)
M20
488
360 (4320)
M24
825
608 (7296)
NOTE
Screws should be retorqued after an initial run of one shift (approximately
eight hours). Screws should be retorqued again after 1 week of service.
WARNING
Ensure that you have fully read “Section 3 - Safety” before doing
maintenance procedures on the E-Multi injection unit.
9-1
MAINTENANCE
E-Multi User Manual
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