PAGE 24 — MAYCO C30HDGA CONCRETE PUMP • OPERATION MANUAL — REV. #1 (09/09/19)
CHECKING ENGINE COOLANT LEVEL
1. Remove the radiator cap, and check the cooling water
level inside the radiator (Figure 13).
2. Maintain water/coolant level at top of radiator coils.
Make sure radiator overflow bottle is filled to the proper
level.
Figure 13. Radiator Coolant
3. Check the radiator and hoses for any signs of leakage.
4. If cooling water is dirty, flush the cooling system.
5. When using antifreeze, mix the antifreeze coolant
with water. Observe the instructions on the antifreeze
container. Usually, a 50/50 mixture is a good choice.
6. When replacing the radiator cap, be sure to fit it
securely back onto the radiator. If replaced loosely or
incorrectly, the cooling water will quickly evaporate,
causing the engine to overheat.
WARNING
If adding coolant/antifreeze mix to the
radiator,
DO NOT
remove the radiator cap
until the unit has completely cooled. The
possibility of hot coolant exists which can
cause severe burns.
INSPECTION
V-BELT
1. Inspect the V-belt (Figure 14) to determine if it is frayed,
peeling, full of tiny cracks, has pieces of rubber missing,
or is otherwise damaged.
Figure 14. V-Belt Inspection
2. Inspect the V-belt to determine if it is oil-soaked or
glazed (a hard, shiny appearance on the sides of the
belt). Either of these conditions can cause overheating
of the belt, which may weaken the belt and increase
the danger of it breaking.
3. Replace the V-belt immediately if any of the
aforementioned wear conditions are observed.
4. Check the V-belt tension (Figure 15) by pushing midway
through the two pulleys. The V-belt deflection should
be between .300 to .472 inches (8 to 121.3. mm).
Figure 15. V-Belt Tension
GLAZED
OIL-SOAKED
BROKEN
CORD FAILURE
CRACKS
MISSING
RUBBER
SIDEWALL
WEAR
WORN BACK
COVER
