MULTIQUIP AR14H Operation Manual page 30

RUBBER SCRAPER MAT
Rubber scraper mats have been provided for the cleaning of
the front and rear drums. Adjust the scraper mats as close
as possible to the drums, using the slotted holes (Figure 30)
provided. Replace these rubber mats when they become
badly worn. The scraper bars are spring-loaded for easy
change-out of rubber mats.
NOTICE
In order for the front scraper bar to lock in place, for
easy scraper change, the springs on the inside of the
engine cover must be removed.
SPRING (4)
RUBBER
SCRAPPER
Figure 30. Scraper Bar Adjustment
FORWARD/REVERSE HYDRAULIC PRESSURE
TEST
1. Park the machine on a solid flat surface and stop the
engine. Set the parking brake and block the front drum
securely.
PAGE 30 — AR14H RIDE-ON ROLLER • OPERATION MANUAL — REV. #3 (09/06/19)
ROLLER
RUBBER
SCRAPPER
2. Check hydraulic oil level by viewing the hydraulic oil
sight glass. The hydraulic oil level must be below the
top and above the bottom of the sight glass. DO NOT
OVERFILL!
3. Adjust engine RPM (3,250 ± 50 RPM).
4. Let engine run for 5 to 10 minutes, this will bring the
hydraulic oil operating temperature to a minimum of
135° F.
5. Check and repair all hydraulic leaks.
6. On the manifold block, install a 5,000 psi pressure
gauge (Figure 31) to the forward pressure quick
disconnect test port 2.
7. Run engine at full throttle.
8. Move the travel lever to the forward position. MAKE
SURE FRONT AND REAR DRUMS DO NOT SPIN.
9. Read the pressure gauge. The relief pressure (roller
drums blocked) will read 2,900 ± 145 psi. Under normal
operating conditions this pressure will read 400-600 psi.
10. Return the travel lever to the neutral position and stop
the engine.
11. Install the pressure gauge into the reverse quick
disconnect port 3 and repeat the above procedures.
The relief pressure reading for the reverse test port 3
will be the same (2,900 psi). Again normal operation
pressure for the reverse port will be 400-600 psi.
12. Normal operating pressures are based on the machine
traveling on level, firm surface. The operating pressures
will increase significantly when traveling uphill.
VIBRATION CIRCUIT PRESSURE TEST
1. Place the front drum on soil, gravel, or a heavy rubber
mat. DO NOT ACTIVATE VIBRATION FEATURE ON
CONCRETE OR HARD SURFACE!
2. On the manifold block install a 5,000 psi pressure
gauge to quick disconnect test port 1.
3. Start the engine and run at full throttle.
4. To start the vibration, toggle the vibration switch on
the travel lever. Under normal operating conditions this
pressure will range between 900-1,500 psi.
MAINTENANCE