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
7.4. I
DLER
R
EPLACEMENT
- H
I
L
IFE
M
ODELS
P115506 R3
101
9. Align the bearings with the marks previously made during disassembly.
10. Tighten the bearing bolts on both sides - this MUST be done first.
11. Align the bottom flat idler in the center of the trunking.
12. Tighten the set bolts securely.
13. Spin the idler to make sure it is centered and secure.
14. Retighten the set bolts.
15. Tighten the jam nuts on the set bolts.
16. Spin the idler to make sure it is centered and secure.
17. Install the covers making sure they are secured properly.
7.4.2. S
IDE
T
ROUGHING
I
DLERS
Figure 7.21
Idler replacement on all Hi Life Models can typically be done without splitting the
belt.
Hi Life side troughing idler assemblies are sealed-for-life and must be replaced
as a unit. The complete assembly can easily be removed through the top of the
trunking with the cover removed. See Figure 7.22.
1. Follow all safety precautions that apply to the installation.
2. Remove necessary covers. Secure covers during the replacement process.
3. Block or tie the conveyor belt away from the side idler assembly that is to be
removed and replaced.
4. Keeper bolt and idler stationary shaft must be loosened several turns before
loosening set screws. The keeper bolt should not be removed at this time.