H
I
R
OLLER
- B
ELT
C
ONVEYORS
7. M
AINTENANCE
H
I
R
OLLER
, M
INI
R
OLLER
, L
O
R
OLLER
& H
I
L
IFE
7.5. L
INER
- B
OTTOM
R
ETURN
P
AN
P115506 R3
105
• This liner is not tightly fastened to the bottom which allows the UHMW
liner to expand and contract at a different rate than the steel bottom. The
UHMW has a much greater expansion and contraction rate than steel.
The steel bottom has slotted holes that will allow the liner to move. There-
fore, the UHMW liner must not be tightly fastened to the bottom (Figure
7.28). The bottom return pan has slotted holes that allow the liner to
move. See Figure 7.28.
• Liner replacement requires that all of the bolts, washers, and nuts first be
removed and discarded.
• Remove the worn out liner.
• Clean and treat any bare metal areas as required.
• Install the new liner in its proper place so that the holes line up with the
holes and slotted holes in the bottom return pan.
• Install all new bolts, washers, and locknuts. The locknuts should be tight-
ened and then backed off so that the bolt spins freely.
• The locknuts MUST NOT be tight!
• Liner joints must be level from trunking section to trunking section. This is
very important so that the return belt with splice protector / wiper cleats
does not catch on these joints.
Figure 7.26
LINER PAN WITH BOLTS (TRUSS
HEADS), WASHERS (FENDER), AND
LOCKNUTS (NYLON)
VIEW FROM UNDER BOTTOM
RETURN PAN
Содержание HI LIFE
Страница 6: ...HI ROLLER BELT CONVEYORS HI ROLLER MINI ROLLER LO ROLLER HI LIFE 6 P115506 R3 ...
Страница 124: ...8 TROUBLESHOOTING HI ROLLER BELT CONVEYORS HI ROLLER MINI ROLLER LO ROLLER HI LIFE 124 P115506 R3 ...
Страница 132: ...HI ROLLER BELT CONVEYORS HI ROLLER MINI ROLLER LO ROLLER HI LIFE 132 P115506 R3 ...