ST16135-00E
25
9
Servicing
9.10 Oil filling / Top-up (Fig. 9.3)
Remove and retain the level plug (D) located behind the bypass
valve (E) and fill the compressor with approved oil.
When the level is correct, oil will overflow from the level plug. Stop
filling, replace the level plug and clean away any spillage.
Refit filler plug (A) Fig. 9.2 and bonded seal (B), renew if
damaged, tighten the plug using a suitable spanner. Do not over
tighten.
9.11
Air Filter Replacement (Fig. 9.2)
Twist the container cap (D) anti-clockwise, lift vertically to expose
the element or unclip the cover if located inside the starter door.
Remove the old element and discard in a safe manner and
replace with a new element before replacing the cap.
9.12 Oil Separator Replacement (Fig. 9.2)
On HV30-HV45 models remove the oil filter first before removing
the separators, refer to 9.9.
Unscrew the oil separator(s) (C) anti-clockwise and discard in a
safe manner.
Using a new separator(s), smear a small amount of oil onto the
seal, screw clockwise, hand tight only.
9.13 Clean Oil Cooler/Aftercooler (Fig. 9.4)
With an exposed matrix as shown (A) use low pressure air (2 bar)
and brush and blow over the whole area of the matrix (A).
Remove grommets (if fitted) at the top of the rear panel and undo
fixing screws that secure it to the rear frame. Ease the rear panel
away from the frame and lift it clear. Vacuum up debris from the
cooler and surrounding area behind the cabinet filter (B).
All discarded items and waste oil must be disposed of in an
approved manner.
9.14 Cabinet Air Filter
Remove the disposable filter located in the rear panel by sliding
upwards and pull the bottom edge to clear retaining lips. Refit in
the reverse sequence.
9.15 Panel Refitting
If the oil filter has been replaced, run for compressor for a short
time (30 seconds) and re-check the oil level.
Push the top panel onto the snap fit location pegs or location slots
and secure with retaining screws if required, close the front panel
door and lock with the key provided.
Fig. 9.4 - Matrix Cleaning
9.16 Electrical Checks
WARNING !
ISOLATE THE COMPRESSOR FROM THE MAINS
ELECTRICAL SUPPLY. LOCK THE ISOLATOR IN
THE OFF POSITION. FIT A SAFETY NOTICE
ADVISING THAT WORK IS BEING CARRIED OUT
ON THE COMPRESSOR.
Open the starter panel door and remove any terminal covers fitted
to contactors and incoming supply terminals.
Check for any signs of overheating and ensure that all electrical
connections are tight.
Pay special attention to power connections, cables connected to
contactors and incoming terminals and ensure all earthing wiring
is present and undamaged.
Close the starter panel door and lock with the key provided to
prevent unauthorised access.
9.17 Motor Cleaning
Remove dust or dirt from motor bodies and the motor air intake
cowls located under the compressor base. Certain models have a
replaceable filter fitted to the underside of the base.
On completion of the basic service remove safety notices and
switch the mains electricity on and open the outlet valve.
