of 20
15
a. Replace plug (22).
b.
Replace fill tube assembly (21) and O-ring packing (27).
c. Replace O-ring packing (21) on body assembly (2).
d. Replace reservoir (5) using three screws (24).
e. Replace filler plug (35) and gasket (36) on body.
5.21 Replacing Pump Handle and Piston
a. Replace piston sleeve (6) and O-ring packing (45, 16)
and back-up washers (46, 17) in body assembly (2).
b. Place O-ring packing (12, 19) between back-up
washers (18, 11)
c. Attach back-up washers (18,11) and O-ring packing
(12, 19) to piston (20).
d. Lubricate piston and sleeve.
e. Attach assembled piston to handle assembly (4).
CAUTION: Do not damage O-ring packing (12, 19)
when sliding assembled piston into piston sleeve (6).
f. Attach clevis (10) to handle assembly and to body
assembly (2), using clevis pins (9) and retaining
rings (8).
5.22 Replacing Piston/Cylinder Assemblies
The piston/cylinder assembly for a deadweight tester
should be replaced when excessive wear is detected on
any component part. Worn piston assemblies are usually
noted by:
1. Excessive leakage of operating fluid through piston
assembly when under pressure.
2. Seizure of piston in cylinder.
3. Damaged piston plate, damaged cylinder threads, or
damage to any component part that results in inferior
performance, or malfunctioning of the unit.
The piston/cylinder assembly is available as a unit only.
This assures the user of maximum accuracy in his
Ashcroft Deadweight Tester and maintains certified trace-
ability to the N.I.S.T.
6.0 WARRANTY – SHIPPING INSTRUCTIONS –
HOW TO ORDER
6.1 Warranty and Limitation of Liability
All products and parts carry a warranty against defective
material and workmanship for period of one (1) year from
date of shipment.
A complete warranty and limitation of liability statement is
made on the standard quotation form at the time of sale.
6.2 Shipping Instructions For Return To Factory
Pack securely to prevent possible damage in shipment.
SHIP TO:
Ashcroft Inc.
250 East Main Street
Stratford, CT 06614
Phone: (203) 378-8281
Fax: (203) 385-0402
www.ashcroft.com
email:
IMPORTANT – Obtain written authorization to return
instruments that have been in contact with corrosive or
hazardous materials such as mercury and radioactive
solutions.
Please furnish the following information with return of in-
strument:
SHIPPING INSTRUCTIONS
Company Name –––––––––––––––––––––––––––––
Phone Number ––––––––––––––––––––––––––––––
FAX Number ––––––––––––––––––––––––––––––––
Person to Contact ––––––––––––––––––––––––––––
Address –––––––––––––––––––––––––––––––––––
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
email Address –––––––––––––––––––––––––––––––
Model –––––––––––––––––––––––––––––––––––––
Serial Number –––––––––––––––––––––––––––––––
Symptoms ––––––––––––––––––––––––––––––––––
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
