Hitachi GH 300 Manuale Utente

1. Keep all screws, nuts, washers, gaskets, and electrical 

fittings removed during repair procedures. These parts 
are not normally provided with replacement assemblies. 

2. Test repair after problem is corrected.
3. If sprayer does not operate properly, review repair 

procedure to verify procedure was done correctly. If 
necessary, see Troubleshooting Guide, page 7, for other 
possible solutions.

4. Install belt guard before operation of sprayer and replace if 

damaged. Belt guard reduces risk of pinching and loss of 
fingers; see preceding WARNING.

Ground sprayer with grounding clamp to earth ground 
for safe sprayer operation when using solvent-based 
materials. Fig. 1.

1. Unscrew lock nut to touch fitting.

2. Lubricate o-ring (A).

3. Screw in fitting hand tight.

4. Unscrew fitting until oriented 

properly.

5. Tighten lock nut to indicated torque. 

(Make sure washer is seated properly 
without pinching o-ring).

To reduce risk of serious injury, do not touch moving 
parts with fingers or tools while testing repair. Shut 
off sprayer when repairing. Install all covers, gaskets, 
screws and washers before operating sprayer

6250

A

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