4.3.
TO DEFLATE
4.3.1.
Depress lever half way (until air can be heard escaping) for an appropriate period, fully depress lever momentarily then release to
display new pressure. Check pressure gauge and repeat procedure until correct pressure level is achieved.
5. INSTALLATION
5.1.
AIR SUPPLY
– Models: SA37/93, SA37/93B, SA37/94 and SA37/95 - Maximum pressure 15 Bar (218psi). Models SA37/98 and
SA37/99 - Maximum pressure 13 Bar (188psi)
5.1.1.
The supply must be clean and dry - use a suitable filter/water trap if necessary.
5.2.
PIPE WORK
Copper or galvanised steel tube is recommended for the supply line from the compressor. The number of bends in the line should
be kept to a minimum and no pockets or low points should be present to allow water to accumulate. Blow the line clear of any
debris and drain off any accumulated water before making the final connection to the gauge.
5.3.
FLEXIBLE HOSE - Models SA37/93 and SA37/93B
The flexible line to the gauge should be properly rated for the duty and supply pressure - hose to BS5118 class 2 is recommended.
A 1/4”BSP Taper (male) connection is required to connect to the gauge.
5.4.
FLEXIBLE HOSE - Model SA37/94 (supplied - 2.5 metres)
Supplied hose meets the required standards for use on commercial and agricultural tyres. If an additional extension hose is required
it must be properly rated for the duty and supply pressure - hose to BS5118 class 2 is recommended.
A 1/4”BSP Taper (male) connection is required to connect to the gauge.
6. MAINTENANCE
6.1.
PERIODIC CHECKS
6.1.1.
For long service and accuracy, the following actions should be carried out at the recommended intervals.
6.2.
WEEKLY - CHECK OPERATION
6.2.1.
The gauge should be checked weekly for correct operation. Look for smooth lever operation and fast, smooth gauge movements.
Check for leaks from tyre connector seals, and for chafing or wear of the flexible hoses. Any problems should be immediately
rectified to ensure calibration is not affected.
6.3.
MONTHLY (Model SA37/95)
6.3.1.
Remove oil screw (fig.1) place 2-3 drops of light oil into the gauge mechanism.
6.4.
QUARTERLY - CHECK CALIBRATION
We recommend the accuracy of the gauge be checked against a calibrated ‘master’ gauge
every 3 months, or at shorter intervals depending on operator’s own quality procedures
manual.
7. TROUBLESHOOTING
7.1.
These air line gauges have been engineered to give years of trouble-free service.
Major faults are often due either to prolonged mistreatment or to a dirty, excessively wet
air supply. The following guide will enable the operator or service engineer to diagnose and cure any problems which may arise.
7.1.1.
Air leaks from tyre connector: The seals should be replaced when it becomes difficult to obtain an easy, positive airtight seal on a
tyre valve.
7.1.2.
Damaged flexible hose (gauge to tyre connector): The complete hose assembly should be replaced immediately if any sign of deep
chafing or cracking appears. Ensure that the centred filter in the gauge outlet port does not become dislodged during replacement.
7.1.3.
Erratic high gauge readings or stiff , jerky lever operations caused by a stiff or damaged valve assembly. If not cured by oiling the
valve mechanism then replace the valve assembly.
7.1.4.
Slow tyre inflation caused by either low supply pressure, blocked inlet filter, or damaged valve mechanism.
7.1.5.
Erratic low gauge readings and/or sluggish gauge operation: Gauge does not return to zero caused by stiff or damaged gauge
mechanism. The gauge must be returned to an authorised repair centre as special equipment is required to re-check the calibration
of the gauge after repair.
Original Language Version
© Jack Sealey Limited
fig.1
S
A37/93.V4, SA37/93B, SA37/94.V3, SA37/95, SA37/98, SA37/99 Issue 2 15/06/22
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
01284 703534
www.sealey.co.uk
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
Note
: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice. Please note that other versions of this product are available. If you require documentation for alternative versions, please email or call
our technical team on [email protected] or 01284 757505.
Important
: No Liability is accepted for incorrect use of this product.
Warranty
: Guarantee is 24 months from purchase date SA37/93, SA37/94, SA3795 and 36 months for SA37/93B, proof of which is required for any
claim.