Maintenance procedures are important to ensure that electrical and hydraulic tools operate efficiently. Regular maintenance includes preventive maintenance to check for proper operation, and corrective maintenance to repair any failures. Emergency maintenance may also be needed to avoid serious issues. When maintaining tools, carefully follow lubrication instructions which include checking lubricant levels and types, and minimizing metal-to-metal contact. Proper maintenance helps tools function safely and economically.

1. ELECTRICAL AND
HYDRAULIC
TOOLS
MAINTENANCE
PROCEDURE

2. Maintenance is an
action carried out to
retain an item in or to
restore it to its
functional condition.

3. Regular maintenance
and servicing of power
tools and electric tools
will help to ensure that
they operate with
optimum efficiency at
all times.

4. The first thing to do in
any preventive
maintenance system is
to use your eyes, nose,
ears, experience, and
judgment.

5. Follow your instinct
or your keen
observation on an
equipment when
doing preventive
maintenance.

6. PLANNED
MAINTENANCE

7. 1. Preventive
maintenance is
performed in order to
ensure that tools are
operating properly and
efficiently.

8. 2. Corrective
maintenance is
performed in order to
correct a failure.

9. 3. Emergency
maintenance is necessary
to put the item at hold
immediately to avoid
serious consequences
such as the loss of
production, extensive
damage of assets, and for
safety reasons.

10. LUBRICATION
The following features
contribute to safety
and economic
lubricating machine
tools:

11. 1. Plates on machines
clearly show the grades
of lubricant, quantities
and intervals are
required. The machine
name, type, and model
should be visible.

12. 2. Maintain the
proper level of
lubrication
reservoirs.

13. 3. Suitable method of
lubrication should be
followed to minimize
or prevent metal – to
– metal contact at all
times.

14. 4. Sufficient lubricant
capacity is needed to
prevent overheating
and thermal
distortion of machine
tool structures.

15. 5. Adequate sealing
should be properly
observed. Install
provision for removal
of contaminant
collected by the
lubricant (e.g., filters).

16. Reference:
Information Sheet 2.3
Page 31 – 32
INDUSTRIAL ARTS:
ELECTRICITY 9
(PREPARING ELECTRIC AND
HYDRAULIC TOOLS)
Learner’s Material