53
Installation, Operations & Maintenance Manual
APPENDIX A
A.1 MAXROY
®
B PUMP ECC FIELD
INSTALLATION (RETROFIT)
(FIGURE 19)
This section applies to field mounting the ECC
on a manually adjusted MAXROY
®
pump.
Refer to
Figure 8
in manual 53938. Installing the
ECC to a MAXROY
®
B pump requires mechanically
mounting the ECC and performing the ECC
calibration procedures.
1. Remove nameplate (
Figure 8
, BN, 53938) from
capacity control knob (BO) exposing the keyway
socket in the top of the knob. Adjust knob to
100% capacity setting.
2. Leave stroke locking handle (BK) loose.
3. Mount bracket onto pump housing 3 bolts and
lock washers (
Figure 19
, 830 & 835).
4. Assemble dowel pin (855) (press fit) and brass
drive pin (845) (slip fit) into the link (850). Insert
the assembled link into the capacity control knob
keyway. The drive pin side of the link fits into
the slot in the top of the knob.
5. Loosely assemble the coupling (860) and
coupling nut (865). Assemble the coupling to the
link. The drive pin of the link fits into the coupling
slot.
IMPROPER CONNECTION OF
THE POWER LINE OR
INCORRECT SUPPLY VOLTAGE CAN CAUSE DAMAGE TO THE
ECC. DISCONNECT ALL POWER BEFORE CONNECTING
WIRES.
6. Connect electrical connections, paragraph
2.6.
YOU WILL BE MAKING
ADJUSTMENTS TO THE ECC
CONTROL CIRCUIT BOARD WHILE IT IS POWERED UP. THIS
CONTROL BOARD IS POWERED BY POTENTIALLY
DANGEROUS VOLTAGE (115 OR 230 VAC). THE CALIBRATION
PROCEDURE IS TO BE PERFORMED ONLY BY QUALIFIED
PERSONNEL FAMILIAR WITH THE HAZARDS INHERENT
WORKING NEAR HIGH VOLTAGES. MILTON ROY ASSUMES NO
RESPONSIBILITIES FOR DAMAGE TO EQUIPMENT OR INJURY
TO PERSONNEL WHILE PERFORMING THIS CALIBRATION
PROCEDURE.
7. Perform calibration B, Paragraph 4.8.1.2.
8. Mount the ECC onto the mounting bracket. The
ECC shaft should slip into the coupling nut bore.
(If the shaft does not slide easily into the bore,
loosen the coupling nut.) Fasten the ECC to
the bracket with the four bolts and lock washers
(870 & 875). 9. Tighten the coupling nut to the
coupling using two wrenches (40 ft-lbs), being
careful not to change the pump capacity setting
or move the ECC shaft.
