Drive Chain Maintenance - Nobles Speed Scrub 2701 Opérateur Manuel Et Liste Des Piéces

OPERATION
SPECIFIC GRAVITY
at 27_C (80_F)
1.265
1.223
1.185
1.148
1.110
NOTE: If the readings are taken when the battery
electrolyte is any temperature other than 27_C (80_F),
the reading must be temperature corrected. Add or
subtract to the specific gravity reading 0.004, 4 points,
for each 6_C (43_F) above or below 27_C (80_F).
2. Always follow proper charging instructions
(See CHARGING BATTERIES).
3. Check the electrolyte level (A) in each battery cell
after charging batteries. The level should be
approximately 1 cm from the bottom of the fill--port
(B). Add distilled water if needed (Figure 40).
DO NOT OVERFILL.
B
A
4. Keep the battery tops clean to prevent battery
corrosion.
To clean batteries:
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling batteries and battery cables. Avoid
contact with battery acid.
a. Mix a strong solution of baking soda and water
(Figure 41).
18
BATTERY
CHARGE
100% CHARGED
75% CHARGED
50% CHARGED
25% CHARGED
DISCHARGED
FIG. 40
FIG. 41
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b. Brush the solution sparingly over the battery
tops and cable connectors.
NOTE: Do not allow baking soda solution to enter
battery cells.
c. Use a wire brush to clean the battery terminals
and cable connectors.
d. After cleaning, apply a coating of clear battery
post protectant to the terminals and cable
connectors.
5. Check for loose or worn cables. Replace if worn.

DRIVE CHAIN MAINTENANCE

FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
Inspect drive chain for proper tension. Chain should
flex between 6.35mm (0.25 in.) and 12.7mm (0.50 in.)
from center. If chain flexes more than 12.7mm
(0.50 in.), chain should be tightened. To tighten chain,
follow steps below:
1. Turn main switch to the off position and pull out
the main circuit breaker button.
2. From operators right side of machine, locate and
loosen 4 motor mount bolts, do not remove bolts.
3. Loosen locking nut on tension bolt (Figure 42).
FIG. 42
4. Turn tension bolt clockwise until chain is taut.
5. Retighten locking nut and 4 motor mount screws.
6. Lubricate chain with a water resistant oil.
Speed Scrub 2701/3301 (07- -04)