Hitachi Zaxis 33U-5A Operator's Manual page 198

7. Remove oil level check plug (2).
8. Add oil until oil flows out of oil level check plug (2) hole.
Model
ZX33U-5A, 38U-5A
ZX48U-5A, 55U-5A,
65USB-5A
f
NOTE: Refer to the recommended oil and grease chart on
page 7-17 for the brand names of oils.
9. Clean and tighten the plugs (1) and (2).
Model
Plug (1)
ZX33U-5A,
38U-5A
Plug (2)
ZX48U-5A, Plug (1)
55U-5A,
65USB-5A Plug (2)
10. Repeat steps 2. to 9. for the other travel reduction gear.
MAINTENANCE
Oil Quantity
0.6 L (0.63 US qt)
0.9 L (0.95 US qt)
Tightening Torque
46 to 51 N∙m (4.6 to 5.1 kgf∙m,
33 to 36 lbf∙ft)
12 to 18 N∙m (1.2 to 1.8 kgf∙m,
9 to 13 lbf∙ft)
22 to 24 N∙m (2.2 to 2.4 kgf∙m,
16 to 17 lbf∙ft)
7-30
1
2
3
M585-07-080