Terex Evoquip Bison 120, Operation Manual, Page: 111 / 224

Maintenance 9
Operations Manual
Bison 120
20-07-2018
Page 9-3
Revision 2.0
9 Maintenance
9.1 Safety Before and During Maintenance
n
WARNING
Practice safe maintenance. Read and understand the operators manual before doing any work.
Maintenance should only be carried out by trained and qualified personnel.
PROCEDURE
1. Whenever maintenance or service is being carried out a minimum of two (2) persons should
be present at all times. NEVER WORK ALONE.
2. Prepare yourself. Wear a hard hat, safety goggles, hearing protection and other protective
equipment as required by job conditions. Do not wear loose clothing or jewelry that can
catch on controls or moving parts. Long hair must be tied back.
3. Prepare the machine. Move the machine onto a level surface and apply parking brakes and/
or wheel chocks. Shut off the engine and remove the key. Relieve all hydraulic pressure by
returning controls to neutral. Secure all hydraulically operated attachments with pins provided.
4. Isolate all electrical supplies to the machine before starting any maintenance work.
5. Never attempt repairs or adjustments to the machine while it is running.
6. Remove only guards or covers that provide access. Wipe away excess grease and oil.
7. Never leave guards off or access doors open when unattended. Keep bystanders away if
access doors are open.
8. When working beneath raised equipment, always use blocks, jack-stands or other rigid and
stable supports. Never work under unsupported equipment.
9. When working at height make sure you take all necessary precautions in line with local
regulations and use approved PPE, safety harnesses and work platforms. If you are not aware
of working at height requirements speak to your manager before starting any work. Keep all
handles, steps, handrails, platforms, landing and ladders free from dirt, oil, snow and ice.
10. Never operate any type of engine without proper ventilation – EXHAUST FUMES CAN KILL.
(See Electrical and Engine Safety for more detailed checklist).
11. Checking for hydraulic leaks. Beware hydraulic fluid under pressure can penetrate the skin
or damage eyes. Fluid leaks under pressure may not be visible. Use a piece of cardboard
to find leaks but do not use bare hand.
12. Wear safety goggles for eye protection. If fluid enters skin or eye, get immediate medical
attention. (See Hydraulic Safety for more detailed checklist).
13. Clean or replace damaged, missing or painted over safety signs that cannot be read.
14. Rotating and moving parts must be inspected during maintenance and replaced if cracked
or damaged. Excessively worn or damaged parts can fail and cause injury or death.
15. After maintenance, tighten all bolts, fittings and connections. Install all guards, covers and
shields. Replace or repair any damaged ones. Refill and recharge pressure systems with
recommended fluids. Start the engine and check for leaks. Operate all controls and make
sure the machine is functioning properly. After testing, shut down, check the work you
performed (any missing cotter pins, washers, locknuts, etc.)? Recheck all fluid levels before
releasing machine for operation.