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V304 VIBRATORY ROLLER — OPERATION AND PARTS MANUAL — REV. #8 (11/13/09) — PAGE 27
V304 — MAINTENANCE
Maintenance
Vibrating Shaft Bearings (50 hrs)
The double row of self-aligning ball bearings on the vibrator
shaft are special bearings that are not available at the local
bearing supply houses. Lubrication of these bearings is very
important and should be lubricated after each 50 hours of
operation. Rotate roller drum so that grease fittings are towards
the lower front.
If it becomes necessary to tear down and reassemble the roller,
remove wash out and repack bearing housing with specified
grease. After cleaning and checking bearings, they should be
lightly packed with the specified grease.
It is essential that no end thrust be applied to these bearings. On
reassembly there should be approximately .060" (min) to .120"
(max) end float on the vibrator shaft, which may reduce when the
shaft reaches working temperature. The bearings must be a light
slip fit on the shaft to insure axial freedom.
Hydrostatic Transmission Fluid (50 hrs)
Inspect the fluid level in the hydraulic fluid reservoir every 50
hours of operation, if low, fill with Mobil 300, GM Dextron B or
Ford MZC-41A type hydraulic transmission fluid. Change
hydraulic transmission fluid on a yearly basis.
Vibrator Clutch Assembly (100 hrs)
The clutch must be greased every 100 hours of operation. Stop
the engine with clutch engaged to check V-belt tension. See
"ensioning g the V-belts"
Engine and Vibratory Shaft Speed Check (100 hrs)
To check the engine and vibratory shaft speed the use of an
"Vibra-Tak" tool will be required.
To check engine speed, place the bottom of the Vibra-Tak tool
(knurled cap) on the engine shroud. Move sliding sleeve to a
position where the maximum throw of wire reed is obtained.
Take a reading from edge of sleeve and multiply reading by
1000. The result is the RPM's the engine is running at.
If the engine RPM speed is too fast or slow, consult the engine
owner's manual on how to adjust the engine speed.
To check the vibrations per minute (vpm) of the roller shaft, place
the bottom of the Vibra-Tak tool (knurled cap) on the roller drum
while the vibrating clutch is engaged. Adjust and read tool as
mentioned above. The
vibratory shaft speed
should be 4400
vpm.
Scrapper Blades (Daily)
The scrappers blades should be cleaned daily after each use to
prevent the build-up of dirt, mud, tar and any other foreign matter
associated with pavement rolling. Use a high pressure water jet
(500-1000 psi) and a strong brush to clean the scrapper blades.
V-30-4 Roller (Daily)
Clean the roller daily after each use. If using a pressurized hose
keep the pressure between 500 and 1000 psi. Avoid using harsh
chemicals, mild detergent soap will do. Avoid direct high water
pressure to the engine, hoses and decals.
Water Tank (30 Days)
Drain and flush the water tank and spray bars every 30 days.
When refilling the water tank, use only clean water.
Adjusting or Changing Travel V-Belt
1. Un-lock the hood retaining latch and lift the hood to gain
access to the V-belts. To adjust the
travel
V-belt, loosen the
four mounting screws on the reduction gearbox (Figure 33)
2. Use the prypoint (Figure 33) to achieve correct amount of V-
belt tension. Tighten gearbox screws, and check belt tension
by verifying the amount of deflection when the belt is pressed
midway between the two pulleys. This deflection should be
approximately 3/4 of an inch (2 cm.)
Figure 33. Travel and Vibratory V-Belts