Operating The Wrench System; Loosening Procedures; Preventive Maintenance; Machine Parts - Bolttech-Mannings QD 4 User Manual

8
D

OPERATING THE WRENCH SYSTEM

By depressing the remote control button, the rear of the tool will be pushed back until its
reaction arm contacts its reaction member. Continue to hold down the button as the
socket turns until you hear an audible "click" which will signify that the hydraulic cylinder
inside the tool is fully extended and will not turn the nut any further. There will be a
rapid buildup of pressure to the point of where the pressure was preset prior to applying
the wrench.
IMPORTANT: This rapid buildup of pressure does not indicate that this pressure
(torque) is being applied to the fastener. It only indicates that the
C
cylinder is fully extended and can not turn the socket further until the
tool is retracted to pick up the next tooth on the ratchet wheel.
Releasing the remote control button will retract the cylinder, the tool will automatically
reset itself and the operator will hear an audible "click" indicating he can again push the
remote control button and the socket will turn. Each time the cylinder is extended and
retracted, it is called a cycle. Successive cycles are made until the tool "stalls" at the
pre set pressure (torque).
NOTE: Always attempt one final cycle to insure the "stall" point has been reached.
Should the tool "lock on" after the final cycle, push down the remote control button to
build pressure. While maintaining this pressure rotate the release mechanism and
relieve the pump pressure. This will allow the tool to be easily removed.
B

LOOSENING PROCEDURES

First, set the pump to 10,000 psi. Change the drive and reaction arm to the loosening
mode and apply the tool, assuring the reaction arm abuts squarely off a solid reaction
point. Press and hold the remote control button. Pressure will build up as the socket
begins to turn. Cycle the wrench until the fastener is loose enough to turn by hand.
If the socket does not turn using the above procedure, it is an indication that you will
require the next larger size tool to loosen the fastener.
A
8
6
7
7 6
5 4

PREVENTIVE MAINTENANCE

Tool failure does occur. Such failure is most often in the hydraulic connectors or hoses.
These items are repairable/replaceable immediately, since they are available
universally. Failure of structural members of the tool are quite rare,but replacement
parts are available from stock.
Special tools are required for the disassembly of the hydraulic cylinder and drive
mechanism.
LUBRICATION: All moving parts should periodically be coated with a good

quality molybdenum disulfide grease. Under harsh environmental conditions,
cleaning and lubricating should be done more frequently.
HYDRAULIC HOSES: Hoses should be checked for cracks and leaks after each

job. Hydraulic fittings can become plugged with dirt and should be flushed
periodically.
QUICK-CONNECTS: Fittings should be kept clean and not allowed to be

dragged along the ground or floor, as even small particles of dirt can cause
internal valves to malfunction. External leakage can be eliminated by applying a
fresh coat of good quality sealant to the threads and tightening securely.
SPRINGS: Springs are used for the drive pawl assembly and ratchet device.

These springs should be checked twice a year and replaced, if necessary.
HYDRAULIC SEALS

because of leaks, it is recommended that all other seals and o-rings be replaced
at the same time. Seal Kits are readily available.

MACHINE PARTS

: All components that are included on the tool should be

inspected once a year to determine if there are any cracks, chips, or deformities.
If so, immediate replacement is required.
CYLINDER BOLTS: Periodically check to see if the cylinder bolts are properly

torqued. Torque cylinder bolts in a criss-cross pattern to the following values
QD2 8 ft-lbs
QD4 8 ft-lbs
QD8 15 ft-lbs
QD14 15 ft-lbs
QD30 25 ft-lbs
SOFTWARE: SOLID WORKS
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES
FRACTIONAL +/- 1/32"
ANGULAR: +/- 1/2 DEGREE
TWO PLACE DECIMAL +/- 0.01
THREE PLACE DECIMAL +/- 0.005
MATERIAL
HEAT TREAT
FINISH
5 4
2
3
ZONE REV.
: If the cylinder packing should require replacement
DATE NAME
DRAWN
CUSTOMER:
CHECKED
ENG APPR.
TITLE:
MFG APPR.
Q.A.
PROPRIETARY AND CONFIDENTIAL
SIZE
THE INFORMATION CONTAINED IN THIS
B
DRAWING IS THE SOLE PROPERTY OF
BOLTTECH. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF BOLTTECH IS PROHIBITED.
SCALE: 1:2
3 2
1
REVISIONS
DESCRIPTION DATE APPROVED
D
C
B
A
DWG. NO. REV
WEIGHT: SHEET 4 OF 18
1