Summers ULTIMATE NT, Operator'S Manual

Page: 21 / 192

2.7
SECTION 2 - SPRAYER OPERATION
a. Perform adjustment at rear of sprayer on part 1 fold cylinder attachment by loosening 4 u-
bolts and sliding spring clevis assembly left or right. There are two adjustment bolts to aid
and to retain the new setting.
b. Position head of adjustment bolt against spring clevis assembly.
c. Tighten jam nut on adjustment bolt.
d. Tighten all cylinder spring clevis u-bolts.
e. Check boom lead again and adjust if necessary.
2.3 INITIAL SET-UP AND ADJUSTMENT OF SPRAYER
SYSTEM
1. REVIEW PLUMBING INSTRUCTIONS FOR OVERALL VIEW OF SPRAYER SYSTEM
FUNCTIONS
Refer to pages 1.4, 1.5, and 1.6.
WARNING!
BEFORE HOOKING UP HYDRAULIC PUMP HOSES TO TRACTOR CONSULT TRACTOR
MANUFACTURER’S OPERATORS MANUAL. CONTINUOUS OPERATION OF HYDRAULIC
MOTOR CAN HEAT UP TRACTOR HYDRAULIC FLUID AND CAUSE HARM TO HYDRAULIC
SYSTEM. READ AND FOLLOW TRACTOR MANUFACTURERS’ RECOMMENDATIONS!
HYDRAULIC PUMP NOTES:
Many tractor hydraulic systems route return lines through filters or other restrictive elements
which can cause in increase in return circuit pressure. Hypro’s hydraulic motor oil seals are designed to withstand 300 PSI
continuous pressure. However, whenever possible, it is recommended to utilize either a standard (or purchase an optional)
low pressure return circuit. This will allow for less oil heat generation, lower horsepower consumption, and longer oil seal
life. Consult with your tractor manufacturer to see if your tractor is or can be equipped in this way.
The Return (or Tank) ports on Hypro hydraulic motors are equipped with an anti-reversing check valve. This is to prevent the
motor from accidentally being operated backwards. Backward operation of the motor will cause almost immediate oil seal
failure.
Do Not Remove Check Valve
.
HM2 and HM4 models of Hypro’s hydraulic motor driven centifugal pumps can be equipped with a metering orifice in the in -
lest port. The orifice is intended to be used on older model tractors with Closed Center systems that do not have flow control
valves. Consult with your tractor manufacturer to determine if you have this type of system and require an orifice. Further
information is available with your pump’s operating manual.
Hypro hydraulic motors are equipped with a bypass adjustment screw. These are only to bea adjusted when used on Open
Center Hydrauic systems. Please see the installation instructions included with the pump for directions on how to use the by-
pass. Closed Center hydraulic systems do not require any bypass. Be sure that the bypass adjustment is screwed all the way
in and the lock nut is tight when operating on Closed Center systems.
There are four basic positions for each type of spool valve. They are Raise, Neutral, Lower, and Float (in order, from back to
front). The names used for these positions vary somewhat between manufacturers, but the order of the positions do not.
To properly operate a hydraulic motor-driven centifugal pump on a tractor hydraulic circuit, only the Lower and Float posi-
tions should be used. Use Lower for “On” and Float for “Off”. The Float position is recommended for turning the motor off
because it allows the remote circuit to flow in a continuous loop allowing the motor to free wheel to a stop and also does not
trap pressure in the circuit.
CAUTION
REVIEW SECTION 2.1 SPRAYER OPERATION
SAFETY BEFORE PROCEEDING