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
7.7. H
EAD
& D
RIVE
P
ULLEY
L
AGGING
P115506 R3
113
2. Remove retainer bolts and locknuts (see Figure 7.40):
• Drive the lagging plate to the side of the conveyor that has adequate
clearance to remove the entire lagging plate.
• Additional pulling power may be necessary by hooking on the lagging
plate with a come-a-long or similar device.
• In some cases due to corrosion and rust, the retainers will have to be
driven out with a large punch or chisel-type tool (>1” diameter or a simi-
larly sized square bar) that will bend them up as they are driven out of the
retainers (see Figure 7.41).
Figure 7.40
Figure 7.41
3. Clean the head pulley and retainers (Figure 7.42):
• Clean all dirt, rust, etc. from pulley.
• Remove all rust, dirt, etc. from retainers.
• Clean all dirt, rust, etc. from pulleys and retainers.
• Use a penetrating and cleaning lubricant.
