FORM NO. 56043055 / HR 2800, HR 2800C / BR 700, BR 700C
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MAINTENANCE SCHEDULE
Maintenance intervals given are for average operating conditions. Machines used in severe operational environments may require
service more often.
MAINTENANCE ITEM
Daily
Weekly
Monthly
Yearly
Charge Batteries
•
Check/Clean Tanks & Hoses
•
Check/Clean/Rotate the Brushes/Pads
•
Check/Clean/Adjust the Squeegee
•
•
Check/Clean Vacuum Shut-Off Float
•
Check/Clean the vacuum motor foam filter
•
Check Each Battery Cell(s) Water Level
•
Inspect Scrub Housing Skirts
•
Inspect and clean Solution Filter
•
Check Foot/ Parking Brake For Wear & Adjustment
•
Lubrication - Grease Fittings
•
* Check Carbon Brushes
•
Note: See the individual machine system sections for maintenance information.
* Have Nilfisk-Advance:
Check vacuum motor carbon brushes (Qty 2) once a year or after 300 operating hours.
Check brush motor carbon brushes (Qty 4) once a year or after 500 operating hours.
Note if the vacuum or brush motor brushes are 9.5mm (3/8 inches) or shorter, replace them.
Check wheel drive motor carbon brushes every 500 operating hours. The original length of each brush is 20mm (25/32 inches). Replace
when shorter than 9.5 mm (3/8 inches) to obtain the same motor efficiency as a new brush.
WARNING!
Turn the key switch off, set the parking brake and disconnect the battery before servicing the machine.
BATTERIES AND CHARGERS
Attention: See the electrical system manual section for battery installation and charger system requirements.
WHEEL DRIVE MOTOR GREASE SPECIFICATION
If drive motor gear housing grease replacement is needed when repair services are performed (Example inspection shows grease
contamination). Clean gear sets and housing and re-pack. Use a multi-purpose, high melting point Lithium based grease, containing
additives to provide anti-oxidant, anti-corrosion and good lubricity properties. Use a total quantity of 4.9-5.6 oz. (140-160g) of grease
to service gear case.
The grease to be used must have excellent mechanical stability, water resistance and high load carrying capacity. The MR 158 grease
is particularly recommended for automotive applications including wheel-bearing lubrication. Available NLGI consistency 3.
Average Drop
Penetration ASTM Worked
Grade
Point °C
(mm / 10) at 25 °C
Base
MR 158 Grease
180
220 / 250
Lithium*
LUBRICATING THE MACHINE
Once a month, pump a small amount of grease into each grease fitting on the machine until grease seeps out around the bearings.
Grease fitting locations are:
•
Squeegee Caster Wheel Axle & Swivel (2) per Assembly
•
Steering Wheel Shaft Universal joint
Once a month, apply light machine oil to lubricate the:
•
Steering Chain
•
Squeegee Height Adjustment Caster Hardware
•
General Pivot Points For the Squeegee & Brush Linkage
MAINTENANCE
Summary of Contents for Hydro-Retriever 2800 BR700
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