21
Copyright 3/20
Bandit
MODEL 1425
MAINTENANCE
7. Check the condition of the cutterhead
assembly, cutterbodies, cutter teeth, rakers,
wiper inserts, and attaching hardware:
Check for elongated bolt holes in cutterbody support
arms, cracks in breakaway points on cutterbody,
loose cutterbody bolts, loose tooth bolts, and
loose raker bolts. Inspect rakers, and inspect the
cutterhead bearings. Check the cutterhead chamber
for wear or damage. If a problem is found, contact
the machine manufacturer or an authorized Bandit
dealer. Check the condition of the cutterbodies, cutter
teeth, rakers, and wiper inserts. Look for, find, and
tighten any component and attaching hardware that
has loosened up, become damaged, or missing.
Replace as necessary. Make sure all components
are torqued according to the chart on page 24.
8. Check cutterhead to turn:
Very carefully, manually with a pry bar or wood bar, turn
the cutterhead a full revolution. This is to ensure the
cutter teeth have proper clearance. If the cutterhead is
jammed with debris or frozen in place,
DO NOT
attempt
to start the engine and engage clutch until the cutterhead
rotates freely. NOTE: It is the best practice to spin the
cutterhead backwards.
9. Check anvil clearance, tightness, and wear:
Measure the anvil clearance. The clearance should
be 0.25” (6.4 mm) from a new tooth. Check the anvil
hardware, make sure the bolts are at the proper
torque. Replace anvil and hardware as needed.
10. Check the screen:
Check for wear or damage. Repair or replace as
necessary. Check clearance at each end and at the
center of the screen. Make sure they are adjusted
1/4” (6.35 mm) from the cutterhead using a new
tooth. NOTE: Screen is pushed back away from the
cutterhead, this will increase wear inside cutterhead
chamber.
11. Hood lock pin and padlock:
After closing cutterhead hood, reinsert the hood
pin and padlock, make sure pin is tight and secure.
If worn replace immediately. Don’t use a worn or
makeshift hood pin. Make sure the chipper hood
engine disable plug is installed correctly and that it
is also operating properly.
12. Discharge access door:
Make sure the discharge access door is closed and
securely bolted. Make sure the discharge access door
engine disable plug is installed correctly and that it is
also operating properly.
DAILY START UP & MAINTENANCE (cont.)
13. Grease all feedwheel, discharge conveyor,
and infeed conveyor bearings:
Use an EP-2 Lithium type grease only for all
bearings. Grease the feedwheel bearings, discharge
conveyor bearings, and infeed conveyor bearings,
with one shot of grease. This type of bearing is
designed with a relief system that will not allow
over greasing. In other words, you can not hurt the
bearing seals by pumping in too much grease. Most
of the failures related to bearings are diagnosed
as “Contamination”. Contamination is caused by
improper lubrication. Wipe off excess grease.
Excessive grease will attract dirt.
14. Clean debris inside and around (including
behind) beltshield:
Be sure to remove any debris from inside and around
(including behind) the beltshield at the end of each
day. Debris left inside the beltshield can affect the
belts and shorten the life of the belts.
15. Check / adjust the cutterhead belt tension:
Inspect belt condition and replace if needed. The
belts will need to be tightened several times in the
first few days of operation. A loose belt will slip and
then glaze over. Once they slip you must replace
them. Check hydraulic pump drive belts also if
equipped. See pages 40 - 41 for procedures.
16. Check infeed conveyor tracking:
Check the tracking of the infeed conveyor. Make
sure the conveyor is running true. Adjust as needed.
17. Check discharge conveyor tracking:
Check the tracking of the discharge conveyor. Make
sure the conveyor is running true. Adjust as needed.
18. Check the hydraulic pump and motor shafts:
Check the hydraulic pump and hydraulic motor shafts
for fit and tightness.
19. Check hydraulic oil level:
The hydraulic oil reservoir tank level should always
remain at 7/8 full. Remember to check
DAILY
to
avoid excessive heat build up.
20.
Check hydraulic shut-off valves:
Check to ensure all shut-off valves on hydraulic
tank are open.
21.
Check for any fluid leaks:
Inspect for any oil, fuel, hydraulic oil, or engine
coolant leaks. Check all hoses, fittings, lines, and
tanks.
DO NOT
use fingers or skin to check for
hydraulic leaks. Repair or replace any damaged or
leaking components.
22. Check hydraulic control valves:
Inspect all hydraulic control valves and ensure they
operate smoothly and shift correctly.
