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Atlas Copco XAHS 146 Dd Instruction Manual

Download Instruction manual of Atlas Copco XA(S) 186 Dd Air Compressor for Free or View it Online on All-Guides.com. This version of Atlas Copco XA(S) 186 Dd Manual compatible with such list of devices, as: XA(S) 186 Dd, XAHS 186 Dd, XATS 156 Dd, XAVS 166 Dd, XAHS 146 Dd

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XAHS 146 Dd - XATS 156 Dd - XA(S) 186 Dd - XAVS 166 Dd - XAHS 186 Dd

5. ADJUSTMENTS AND SERVICING PROCEDURES

5.1 ADJUSTMENT OF THE CONTINUOUS REGULATING SYSTEM

The working pressure is determined by the tension of the spring in the

regulating valve (RV). This tension can be increased to raise the

pressure and decreased to lower it by turning the adjusting wheel

clockwise and anti-clockwise respectively.

To adjust the normal working pressure, proceed as follows:

1. Start and warm up the engine (see section 3.3).

2. With the outlet valves (AOV) closed, loosen the regulating valve’s

lock nut and adjust the regulating valve (RV) until a pressure of

X bar(e) is reached (see table).

3. Check the minimum speed of the engine. Adjust minimum speed

stop screw if necessary.

4. Open an outlet valve (AOV) just enough to let the engine (E) run

at maximum speed. The working pressure must be Y bar(e); adjust

if necessary with regulating valve (RV) (see table).

5. Check the engine maximum speed. Adjust the maximum speed

by means of adjusting eccentric nut on top of speed regulator (SR).

6. Close the outlet valves (AOV), check that the pressure is between

Z1 and Z2 bar(e) (see table). Lock the regulating valve (RV) by

fixing the lock nut.

(BOV)

(AF

CE)

(L

V)

(DP)

(MPV)

(NR

V)

(UV)

(UA)

(VH)

(BDV)

(CV)

(CH)

(AOV)

(AF

E)

(R

V)

(SR)

(VV)

(VI)

(VV)

(SV)

(FR)

(PG)

(AR)

(DP)

(OLG)

(SL)

(FP)

(SL)

(OF)

(CE)

(DP)

(TS)

(F)

(OC

CE)(E)

(VI)

(SC)

(SC)

(OS)

Fig. 5.1 Regulating system

X

bar(e)

Y

bar(e)

Z1 – Z2

bar(e) bar(e)

XAHS 146 Dd 13.5 12 13.2 – 13.6

XATS 156 Dd 11.8 10.3 11.7 – 12.2

XA(S) 186 Dd 8.3 7 8.1 – 8.5

XAVS 166 Dd 15.5 14 15.3 – 15.7

XAHS 186 Dd 13.5 12 13.3 – 13.7