Clock Manual | Iwata 2crh Bundy
The 2CRH prints in 3 zones based on card insertion depth:
Adjust zone stops via the internal adjustment plate (see §8).
For decades, the name Bundy has been synonymous with time recording. Originally popularized in the early 20th century, the term "Bundy clock" is now a genericized trademark for any manual time stamping machine. Among industrial time recorders, the Iwata 2CRH stands out as a robust, electromechanical workhorse. iwata 2crh bundy clock manual
Produced by Iwata Time Recorders (a respected Japanese manufacturer known for precision engineering), the Iwata 2CRH Bundy Clock is a two-color, automatic time recorder designed to stamp arrival and departure times on paper time cards. While modern digital systems have taken over, many factories, smaller offices, and vintage equipment enthusiasts still rely on the 2CRH for its durability and simplicity.
The Problem: Official physical manuals for the Iwata 2CRH are increasingly rare. Finding a PDF or a comprehensive guide online is challenging. This article serves as a crowd-sourced manual to help you operate, maintain, and repair your unit. The 2CRH prints in 3 zones based on card insertion depth:
Most Iwata clocks print a mark (like a dot or star) or change numbers to distinguish between AM and PM, or they may operate on a 24-hour cycle.
| Parameter | Value | |-----------|-------| | Dimensions | 280W x 310H x 150D mm | | Weight | 5.2 kg | | Print speed | 0.8 sec per stamp | | Card size | 89 x 188 mm, 200 gsm max | | Ribbon life | ~50,000 stamps | | Motor type | Synchronous hysteresis (220 rpm) | | Accuracy | ±2 minutes per month | | Backup | None – time held only while powered | Adjust zone stops via the internal adjustment plate
Mechanical Bundy clocks have rotating type wheels inside. You must manually adjust these to print the correct date.
| Symptom | Likely Cause | Solution | |---------|--------------|----------| | Clock does not move | Dead mains, blown fuse, jammed gears | Check power, replace fuse (slow-blow), oil movement | | Prints faint / no print | Worn ribbon, dirty print wheels | Replace ribbon, clean type with isopropyl alcohol | | Always prints red | Color-change cam stuck, spring broken | Open movement, check cam follower near 12 o’clock wheel | | Prints wrong date | Manual date knob turned, or date wheel jam | Advance date to correct by turning forward only | | Card jams | Bent card guide, foreign object in slot | Remove debris, gently realign guide with pliers | | Does not print when card inserted | Micro-switch disconnected, solenoid dead | Check switch continuity, listen for solenoid click |