Tennant ATLV 4300 Service Manual page 182

Series 26 - Model 26000 Single Gear Pumps
Specific Backplate Parts List
27
26
33
32
Tandem Flow Divider Backplate
Disasembly and Reassembly
1 Remove relief valve plug, shim, spring, and poppet from
backplate. Do not remove internal relief valve seat. Seat is
loctited to a predetermined depth. Remove o-ring from plug
and replace with new o-ring.
2 Install poppet, spring, shim, and relief valve plug and
torque 14 to 16 N•m [10 to 12 lbf•ft]
3 Remove flow divider plugs, shims, springs, spool, and
sleeve from backplate. (Notice orientation of spool with cavity
in backplate) Remove o-rings from sleeve and replace with new
o-rings .
4 Install sleeve, spool, springs, shims, and plug assemblies
into backplate. Torque plug #27 48 to 54 N•m [35 to 40 lbf•ft]
and plug #28 29 to 33 N•m [21 to 24 lbf•ft]
2D
18
29A
29
29B
35
30
34
38
20A
23A
24
28B
Item
No. Description
2D Tandem Flow Divider Backplate
2E Tandem Backplate
18 O-ring
20A Spool for Tandem Flow Divider Backplate
23A Spring for Tandem Flow Divider Backplate
24 Shim (.0239 inch thick)
~ 26 O-ring
27 Plug
28 Plug/O-ring Assembly
28A Plug
~ 28B O-ring
29 Plug/O-ring Assembly
29A Plug
~ 29B O-ring
30 Relief Valve Spring
32 Sleeve
33 Spring
34 Poppet
35 Shim Washer (.010 inch thick)
36 Tandem Cover Plate
37 O-ring
38 Cap Screw
A/R – As Required
12
Tandem Backplate
37
36
28
28A
2E
Qty.
1
1
3
1
A/R
1
1
1
1
2
1
1
1
1
1
1
1
A/R
1
1
2