1
Product Instructions
Flat-II
General Repair Instructions K-B-FT-
DISASSEMBLY
1. Using the appropriate allen wrench, remove the 2 bolts from end block.
2. Using the appropriate allen wrench, remove the 4 (8 for long
stroke versions) body bolts from the end caps.
3. Remove the body posts from assembly.
4. Remove the rod guide and rear head from the body.
5. Remove piston/rod assembly from body.
6. For cylinders with FKM option, please skip to step 9.
7. Install provided snap ring into the rod guide (shown in Figure 1).
8. Press out rear bushings from rod guide.
9. Remove the rod seals from the rod guide. (For cylinders
with FKM option, a pick may be needed.)
10. For cylinders with FKM option, please skip to step 12.
11. Press out rear bushings (as shown in Figure 2).
12. Remove body seals from rod guide and rear head.
13. Remove the piston seal(s) from the piston/rod assembly.
(see reverse side for reassembly instructions)
2
Product Instructions
Flat-II
General Repair Instructions K-B-FT-
Form: BMS-1023
rev. 1: EC-37763
For further information, scan
this QR code or visit
www.bimba.com
REASSEMBLY
1. Lightly lubricate all of the new seals.
2. For cylinders with FKM option, please skip to step 4.
3. Press in the new front bushings into rod guide as shown in Figure 3.
4. Install the new rod seals into the rod guide behind the front bushings. (For FKM
option cylinders, the seals will be installed between the front and rear bushings.)
5. For cylinders with FKM options, please skip to step 7.
6. Press in the new rear bushings into the rod guide as shown in Figure 4.
7. Install new piston seal(s) onto piston/rod assembly.
8. Install the new body seals into the rod guide and rear head.
9. Carefully install the rod guide assembly into the piston/rod assembly.
10. Install the body into the rod guide. (Be careful not to damage the body seal.)
11. Install the rear head onto the body. (Be careful not to damage the body seal.)
12. Install the 4 posts back in between the rod guide and rear head.
13. Install the 4 (8 for long stroke versions) body bolts back into rod guide and rear head.
14. Torque the bolts to the applicable values in Table 1.
15. Retract the rods, then attach the end block using the two bolts that had
been removed earlier (torque bolts to the applicable values in Table 2).
TABLE 1: FT BODY BOLTS
TORQUE SPECIFICATION
BORE
SIZE
SCREW
SIZE
TORQUE: IN-LB (FT-LB)
STANDARD “S” OPTION
3/4”,
1-1/16” #4-40 7 (.58) 3.5 (.29)
1-1/2”,
2” #10-24 35 (2.9) 19 (1.6)
TABLE 2: FT END BLOCK BOLTS
TORQUE SPECIFICATION
BORE
SIZE
SCREW
SIZE
TORQUE: IN-LB (FT-LB)
STANDARD “S” OPTION
3/4” #4-40 7 (.58) 3.5 (.29)
1-1/16” #8-32 25 (2.1) 12 (1.0)
1-1/2” 1/4-20 90 (7.5) 41 (3.4)
2” 5/16-18 150 (12.5) 87 (7.3)
(see reverse side for disassembly instructions)
Bimba
25150 S. Governors Hwy
University Park, IL 60484
Tel: +1 800 44 BIMBA
Fax: +1 708 235 2014
Email: [email protected]
Website: www.bimba.com
/
