Hitachi ZAXIS 17U-2 Operator's Manual page 144

Adjustment of Fan Belt Tension
1. Remove the floor plate (3). Move the seat (4) ahead
most by using seat backward and forward adjusting
lever and incline the backrest to the forward position.
2. Remove the two installed bolts (9) under the seat
base, and lift the seat base until the end of lock (7)
inserts into locking position (8).
3. Loosen mounting bolts (6) of alternator (5).
4. Move alternator (5) to correctly adjust the fan belt
tension.
5. Securely tighten bolts (6).
6. Reverse order of the above procedure.
Return the seat base to previous position,
reassemble the unites.
NOTE: When a new belt is installed, the new belt is
difficult to be correctly seated from the
beginning. Be sure to readjust the tension after
operating the engine for 3 to 5 minutes at slow
idle speed.
MAINTENANCE
7-41
9
4
3
M1MS-07-022
5
M1MS-07-023
7
8
M1MS-07-024
6
6
M1M7-07-047