WOOD'S POWR-GRIP MRT410LDC3, Operating Instructions Manual

Page: 34 / 50

MRT4-DC3: #35068 Rev 6.2/2-20 32
MAINTENANCE
Notes: Refer to SERVICE MANUAL
#36105
when applicable. See final section for wiring diagrams.
V
ACUUM
P
AD
M
AINTENANCE
Pad-to-Load Friction Coefficient
The friction coefficient represents the lifter's ability to resist load slippage.
1
The
Maximum Load Capacity is based on a friction coefficient of 1, as determined by testing of
clean, new, standard rubber vacuum pads on clean, dry, regular glass.
If the lifter is used
under any other conditions, a qualified person must first determine the effective lifting
capacity.
2
Long-term exposure to heat, chemicals or UV light can reduce the friction coefficient of
vacuum pads. Replace pads every 2 years or more often, when necessary.
Pad Inspection
1A
Inspect each vacuum pad (fig. 1A) according to
the “I
NSPECTION
S
CHEDULE
” on page 28 and
correct the following faults before using the
lifter (see “REPLACEMENT PARTS”, when
applicable):
• Contaminates on the face (item 1 in fig.
1A) or sealing edges (item 2 in fig. 1A).
• Filter screen (item 3 in fig. 1A) missing
from face.
• Nicks, cuts or abrasions in sealing edges.
Replace any pad that has damaged
sealing edges.
• Wear, stiffness or glaze.
1..... Not applicable to Flat Lifters.
2..... A “qualified person” has successfully demonstrated the ability to solve problems relating to the subject matter and work, either by possessing a
recognized degree in an applicable field or a certificate of professional standing, or by possessing extensive knowledge, training and experience.