210OPTRS 14 2008
HYDRAULIC SYSTEM
Sweeper operation is dependent upon a properly functioning hydraulic system. Components
such as the gutter broom, pick-up head lift assembly and hopper dump are all dependent on the
hydraulic system for their proper operation.
The main hydraulic system components to be familiar with are:
A. Hydraulic Reservoir
B. Hydraulic Pump
C. Control Valves
A. HYDRAULIC RESERVOIR
The hydraulic reservoir is located on the left side of the sweeper between the cab
and dust separator (See Page 3). The reservoir oil capacity is 8 gallons (30.3 liters)
and the operator must check the oil level daily! The sight gauge is located on the
front side of the hydraulic reservoir. If the oil level is low, fill reservoir before operat-
ing sweeper. Use only 10W motor oil. (See Parts & Service Manual for Equivalent
Chart)
Located on the hydraulic reservoir is the hydraulic system oil filter. The filter should
be changed every 100 hours of sweeper service. The hydraulic oil filter is a spin-on
automotive type (TYMCO P/N 5010080).
NOTE: Change the break-in oil after initial 100 hours of operation. Then change oil
once every 12 months or 1000 hours, whichever occurs first. Drain hose is
located on the bottom of the reservoir.
CAUTION
: Operator should never check for hydraulic leak using bare hand.
High pressure used in the system could result in oil being injected
into hand causing serious injury. Always turn sweeper off before
servicing.
B. HYDRAULIC PUMP
The hydraulic pump is belt driven by the sweeper auxiliary engine. Hydraulic pump
belt tension is critical for proper component operation. After initial 20 hours of opera-
tion, re-tension belt. To access pump, hopper must be raised. Always install pin in
lower safety strut before working under hopper!
Do not over-tension hydraulic belt! At center of belt span, use thumb and firmly de-
press belt. A properly tensioned belt should deflect approximately 1/2 inch (12.7mm).
A 3/8" (9.5 mm) J.I.C. flared male fitting for testing the system pressure is located at
the output port on top of the pump. Use a test gauge rated to 3000 PSI (207 Bar) for
system pressure checks.
CAUTION
: Never Work Around belt drives when sweeper engine is running!
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