Maintenance instructions – SPP Pumps Auto Prime Medium Head Open Set - AC & AL Range User Manual

Page 10

Manual No/Rev
W72-002 / 11

Operators Handbook for

Diesel Driven Pump Sets

Our policy is one of continuous improvement and we reserve the right to alter specifications at any time

Page 10 of

7. MAINTENANCE INSTRUCTIONS

7.1 COALESCER (100M, 150, 150M, & 200)

Check the oil level in the coalescer tank and
drain any water daily. The top of the oil
should be level with the underside of the filler
cap. Water is removed by means of the drain
tap fitted to the side of the coalescer sump.

The filter mesh is accessed by removing the
coalescer lid and must be cleaned regularly
by washing in petrol or a similar spirit. When
refitting ensure filter mesh is below exhaust
port. The oil feed pipe should be cleaned in a
similar manner and blown through with an air
line.

Figure 0-1 Coalescer detail

7.2 OIL RESERVOIR (AC50, AC75, AC80 &

AC100)

7.2.1 AC57 &AC75

Ensure that oil reservoir is always kept
topped up.

7.2.2 AC80 & AC100

Maintain the oil level between the
maximum and minimum levels marked
on the bottle.

7.3 COUPLING (open coupled sets)

Coupling details are provided at the back of
this manual.

7.4 DRIVE BELT ADJUSTMENT

Figure 0-2 Belt tensioning

Pump

sets

Belt type

Deflec-

tion

‘X’mm

Force (kg)

producing

deflection

‘X’)

AC50 &

AC75

V belt

1.5

AC80 &

AC100

V-belt

1.5

Others Timing

(toothed)
belt

1.5

Canopied

Low noise

units

PowerTwist
A section
link belt

1.6

1.5-2.0

To adjust belt tension, loosen the vacuum

pump holding nuts and slide the
vacuum pump outward. When the
correct belt tension is obtained re-
tighten holding nuts. Ensure that the
pump drive is in line after tightening.

Link belt drives can be further adjusted by

removing links.

DO NOT OVERTIGHTEN BELTS UNDER

ANY CIRCUMSTANCES.

For AC50, AC75, AC80 & AC100 pumps

fitted with V belts and other pumps
fitted with PowerTwist link belts, the
belts can be replaced by slackening the
vacuum pump holding down bolts. For
other pumps it is necessary to
disconnect the coupling to replace the
belts.

7.5

ATTENTION