Kubota Z400-B Handbuch Seite 119

Checking the Water Pipe
1. Check to see if the water pipes are properly fixed every
150 hours of operation or every six months, whichever
comes first.
2. If the clamp is loose, apply oil to the threads and re ­
tighten it securely.
3. The water pipe is made of rubber and tends to age. It
must be changed every two years. Also change the clamp
and tighten it securely.
Kubota Scale Inhibitor No. 11
1. Kubota Scale Inhibitor No.11 prevents scale formation in
the cooling water. Scale build-up in either hard or soft
water sharply reduces cooling efficiency.
2. The Scale Inhibitor is effective for 3 months so cooling
water must be completely changed every 3 months.
Cleaning Cooling System
1. The cooling system should be cleaned on the following
occasions:
• Every 400 service hours.
• When adding antifreeze.
• When changing from water containing antifreeze to
pure water.
2. When cleaning the cooling system, Kubota Detergent
No. 20 is recommended to effectively wash away the rust
build-up.
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